Sbc hei distributor wiring diagram

ballast resistor (or loom resistance wire) in the wire between the ignition switch and the coil (+) terminal. One easy way to find the ignition ballast resistor is to check the service manual for your vehicle. Example: Vehicles with a Ford TFI or Delco HEI require adding an ignition ballast resistor in the wire from the ignition switch.

Only show this user. #3 · Feb 14, 2016. Hei wiring. To wire an HEI just go from the ignition side of the key switch directly to the HEI. There are two terminals one marked IGN and the other TAC. Wires coming out of the HEI body plug into the cap also. The ignition wire should be at least a #14.However, as long as the spark plug wires are connected in the correct order, it usually doesn’t matter where position one is on your HEI Distributor. The firing order for the HEI Distributor Cap on the Chevy 350 is 1-8-4-3-6-5-7-2, the same as for the engine.Remove your distributor cap. Rotate engine until both valves are closed on #1 and then use a pencil or stiff wire etc. to carefully feel the piston come up in the cylinder.. stop before it gets to the top. check your balancer ref mark, it will be close to 10 deg BTDC. Now look at your rotor.Nov 2, 2020 · Re: HEI Distributor Wiring. Simplest way to do this is pull wire that was on the original distributor out of the wrap down to the fuse block. Leave yourself enough wire to splice onto it. Then run new wire back to HEI. The original wire was a resistor wire but it wasn't the whole length of the wire. If it is a small cap with two weatherpak connectors, one four wire, one two you have a computer controlled fuel injection distributor that requires a computer to advance the timing. The two wire connector goes to the coil, the four wire to the ECM. 1973/8 450sl 1966 Lincoln Continental, 2008 Lexus LS600h, 2010 Tundo RW.The first step in wiring a Chevy 350 HEI distributor is to locate the starter relay. This is typically located near the starter motor. After locating the starter relay, you will need to connect the two wires coming from the relay to the two terminals on the back of the HEI distributor. Once these wires are connected, the next step is to connect ...

2. Using the diagram above, wire up the main power and ground wires. Start with the power cable from the battery. Use a single 10 gauge strand. Attach an eyelet to one end (or however you'd like to connect to the battery) and a spade connector to the other to connect to the relay. Somewhere near the battery cut the wire and solder in the 30amp ...So small block chevy firing order he is the same as the normal engines. A small block Chevy engine’s firing order is a predetermined pattern that controls the manner in whereby each cylinder gets a charge from the ignition system. The small block chevy firing order diagram hei is a proper visualization of the whole process and its order.A proper wiring diagram is essential for understanding and optimizing the performance of a Chevy HEI distributor. It serves as a visual representation of the electrical connections and pathways within the distributor, allowing mechanics and enthusiasts to troubleshoot issues, make modifications, and unlock the full potential of their engine.The diagram will also help you identify any damaged or corroded wires, which can be dangerous if left unchecked. A properly functioning wiring diagram will show you which wires are in good condition and which need to be replaced. This allows you to make sure your engine is running safely and efficiently. Finally, a Chevy 350 Hei Distributor ...If you cannot find a wiring diagram for your specific applica-tion or simply need more information, contact our Customer Support Technicians at (915) 855-7123 from 7 - 5 ... NOTE: Not recommended for use with a GM HEI Internal Coil Distributor. Wire Functions Red: Connects to the positive (+) terminal of the coil, or a switched 12v.4. Lift the distributor out of the engine. Note that the rotor rotates as you lift the distributor out. This is due to the helical cut gear and should be taken into consideration when installing the new distributor. 5. Install the gasket and apply a liberal amount of lubricant to the distributor gear. 6. Install the new distributor. A comprehensive wiring diagram can provide a complete picture of the system, making it easier to figure out what needs to be done to make sure everything is working as intended. The Chevy 350 Hei Distributor Wiring Diagram is an essential component of any vehicle maintenance routine.

Sniper Ignition Wiring with Holley Distributor, with CD Box (MSD 6A Shown) Here's a great video detailing the setup of the Holley Dual-Sync Distributor with the Shiper EFI System. If you follow these instructions you can set the ignition configuration as follows: Ignition Type: Holley Dual Sync. Reference Angle: 50.0.The Chevy 350 HEI Distributor Wiring Diagram is an essential guide for anyone who needs to understand the wiring of their Chevy engine. This diagram shows the connections between the distributor, spark plugs, wires, and other components of the engine. It also shows which colors of wires connect to which parts of the engine.Having a Chevy 350 ...Hope this helps.Black to Battery Negative.Red + White to Battery Positive.Green to Distributor Negative ("TACH" plug).That's the way I wired it up.And don't ...May 21, 2023 · The Chevy 350 HEI Distributor Wiring Diagram is an essential guide for anyone who needs to understand the wiring of their Chevy engine. This diagram shows the connections between the distributor, spark plugs, wires, and other components of the engine. It also shows which colors of wires connect to which parts of the engine.Having a Chevy 350 ... Here are a couple diagrams illustrating the wiring of the points and HEI ignition systems. The first diagram shows a typical stock points system. The second diagram shows where the wires go when converting to HEI. Note that the new HEI power wire can be connected to the bulkhead connector as described in the above paragraph, or it can be routed ...2. Remove the coil wire from the distributor cap and position the terminal so it is approximately 1/2" from a good ground. 3. Disconnect the MSD White wire from the distributor points or the ignition amplifier. 4. Turn the ignition to the ON position. DO NOT CRANK THE ENGINE. 5. Tap the White wire to ground several times.

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The following steps should be used to properly install the Chevy TBI and HEI distributor wiring system: Disconnect the battery and remove the negative cable to ensure safety. Remove the old wiring system for the existing engine. Install the new wiring harness for the TBI and HEI distributor. Mount the ignition coil, spark plugs and wires.The distributor is what gets that high voltage from the coil to the right cylinder. The connection is accomplished through a cap and rotor. The ignition coil connects to the rotor, and the rotor spins around inside the cap. The coil passes a high-voltage pulse through the rotor each time it passes a contact in the cylinder, transferring its ...It required the use of a separate coil and ignition box. Under all those wires is an MSD distributor for use with an MSD 6 box and an ignition retard for nitrous use. On the dyno or at the track, this micro adjuster for setting the timing is a boon. It allows precise changes in timing as small as 1/4 degree.However, as long as the spark plug wires are connected in the correct order, it usually doesn’t matter where position one is on your HEI Distributor. The firing order for the HEI Distributor Cap on the Chevy 350 is 1-8-4-3-6-5-7-2, the same as for the engine.A Chevy 350 HEI Distributor wiring diagram outlines the connections between each component in the distributor. It also provides instructions on how to connect each wire to the correct terminal on the distributor cap and rotor. The diagram also includes a troubleshooting guide to help you identify any potential wiring issues.If it is a small cap with two weatherpak connectors, one four wire, one two you have a computer controlled fuel injection distributor that requires a computer to advance the timing. The two wire connector goes to the coil, the four wire to the ECM. 1973/8 450sl 1966 Lincoln Continental, 2008 Lexus LS600h, 2010 Tundo RW.

com (915) 857-5200 fax (915) 857-3344 wiring the msd programmable 6al-2, pn 6530 or green g r e e n pn 8860 harness violet v i o l e t distributor with magnetic pickup msd crank trigger wheel distributor from ignition key (original coil + wire) ignition key to 12v + heavy red heavy black to battery to battery + orange (to coil +) black (to coil ...Aug 5, 2022 · A Chevy 350 HEI spark plug wiring diagram usually consists of a large distributor cap, two small metal posts, and several wires. The two small metal posts are the battery cable and the coil wire. The battery cable carries power from the battery to the distributor. The coil wire carries the spark from the distributor to the spark plugs. Remove your distributor cap. Rotate engine until both valves are closed on #1 and then use a pencil or stiff wire etc. to carefully feel the piston come up in the cylinder.. stop before it gets to the top. check your balancer ref mark, it will be close to 10 deg BTDC. Now look at your rotor.May 29, 2015. Distributor: HEI conversion. Time: 2 hours. Tools: standard wrench set, flat-blade and/or Phillips screwdriver, wire strippers/crimpers. Cost: varies by manufacturer- approximately $175-$400. Tinware: HEI distributor (new, rebuilt, or used), HEI ignition lead connector, HEI style plug wires. Tip: Label or mark the location of your ...ALL MY VIDEOS ARE IN 1080p so check that outjust an idea on how to wire a GM HEI electronic distributor into an aftermarket ignition box thanks for watching ...However, as long as the spark plug wires are connected in the correct order, it usually doesn’t matter where position one is on your HEI Distributor. The firing order for the HEI Distributor Cap on the Chevy 350 is 1-8-4-3-6-5-7-2, the same as for the engine.2. Using the diagram above, wire up the main power and ground wires. Start with the power cable from the battery. Use a single 10 gauge strand. Attach an eyelet to one end (or however you'd like to connect to the battery) and a spade connector to the other to connect to the relay. Somewhere near the battery cut the wire and solder in the 30amp ...Tach Signal: The Pro-Billet HEI Distributor features a Gray Tach Output wire which provides a clean signal for most tachometers and even some aftermarket fuel injection systems. The signal output is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the built-in rev limiter. 1 - Tube of Gear LubricantMay 9, 2022 · The following steps should be used to properly install the Chevy TBI and HEI distributor wiring system: Disconnect the battery and remove the negative cable to ensure safety. Remove the old wiring system for the existing engine. Install the new wiring harness for the TBI and HEI distributor. Mount the ignition coil, spark plugs and wires. The Chevy 350 HEI distributor wiring diagram is a helpful resource when troubleshooting your ignition system. It shows the connections between the distributor, ignition module, pickup coil, and spark plugs. It also shows the location of the spark plug wires, which should be attached to the distributor cap. Additionally, the wiring diagram shows ...

4. Lift the distributor out of the engine. Note that the rotor rotates as you lift the distributor out. This is due to the helical cut gear and should be taken into consideration when installing the new distributor. 5. Install the gasket and apply a liberal amount of lubricant to the distributor gear. 6. Install the new distributor.

Don’t let the power of the HEI distributor go to waste – take the time to study and understand the wiring diagram, and unleash the full potential of your engine. The Basics of a Chevy HEI Distributor. A Chevy HEI distributor is a type of ignition system that replaces the traditional points and condenser system found in older engines. MAS Performance HEI Distributor & Spark Plug Wires & Free Pigtail Wire Harness Combo Kit Compatible with Chevy GMC SBC 305 350 BBC 454 65k Coil 7500RPM DD-SBC-HEI-V8 Replacement for 850001R. 120. 100+ bought in past month. $8299.HEI Distributors feature a simple hook-up and coil-in-cap design that allows the spark plug gaps to be opened up to 0.050 in.-0.055 in. ... HEI Distributor; 8.0mm Blue Pow'r Wires; View Details. $125.98 Ships Tomorrow Lowest Price Guarantee. Add To Cart. JEGS HEI Distributor for Small Block and Big Block Chevy.Tach Signal: The Pro-Billet HEI Distributor features a Gray Tach Output wire which provides a clean signal for most tachometers and even some aftermarket fuel injection systems. The signal output is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the built-in rev limiter. 1 - Tube of Gear LubricantSpark Plug Wiring Diagram The 1947 Present Chevrolet Gmc Truck Message Board Network. Chevy 327 350 400 Red Small Hei Distributor 50k Volt Coil Spark Plug Wires Under Exhaust Swapmeetparts. Small Cap Chevy Inline 6 Cylinder 194 216 235 Black Hei Distributor Coil Plug Wires Swapmeetparts. Ignition Systems Cheat Sheet For The Chevy Small BlockAlso both types of caps are shown, HEI and old school Points Style. Remember you can put the wires any where you want as long as the sequence is right. Sometimes you need to do this to clear things with distributor interference. The firing order works for the following Small Block Chevy Engines - 283 Chevy 302 Chevy 305 Chevy 307 Chevy 327 Chevy MAS Performance HEI Distributor & Spark Plug Wires & Free Pigtail Wire Harness Combo Kit Compatible with Chevy GMC SBC 305 350 BBC 454 65k Coil 7500RPM DD-SBC-HEI-V8 Replacement for 850001R. 120. 100+ bought in past month. $8299.Ballast Resistor: If your vehicle has a ballast resistor in-line with the coil wiring, it is recommended to bypass it. This wire is responsible for turning the MSD On and Off. Connects to a switched 12 volt source such as the ignition key or switch. (Max current draw of .250 mA.) This wire connects to the coil positive (+) terminal. This is the ...

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Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide. Ensure you are getting the best performance out of your ignition system.The Chevy 350 TBI distributor wiring diagram consists of several components: The main power supply, the ignition switch, the distributor, and the ECU (Engine Control Unit). Each component is connected to the other, either directly or through relays, switches, or other intermediate devices. All of these components are designed to work together ...A legend returns - the tried and true Mallory Unilite Distributor line is back! The easy three wire hookup of the Unilite makes running a stock coil, a Mallory performance coil and even a Mallory HyFire CD ignition a snap. Supplied with a quality cap and rotor, the Mallory Unilite also provides a fully adjustable mechanical advance to dial in the perfect timing curve for …Tach Signal: The Pro-Billet HEI Distributor features a Gray Tach Output wire which provides a clean signal for most tachometers and even some aftermarket fuel injection systems. The signal output is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the built-in rev limiter. 1 - Tube of Gear LubricantHowever, as long as the spark plug wires are connected in the correct order, it usually doesn’t matter where position one is on your HEI Distributor. The firing order for the HEI Distributor Cap on the Chevy 350 is 1-8-4-3-6-5-7-2, the same as for the engine.www.cemaz.com. Mar 20, 2010. #2. Yes the big batt cable goes to the big post on the solenoid, along with a pair of 10 gauge wires on a ring terminal. Those wires go back to the alternator and the fuse panel. Older starter solenoids also have two small terminals. The pass side small terminal is for the start wire from the key.See attached diagram for the 69 Camaro Ignition switch. The Pink Wire is HOT in the RUN and START Position. At the bulkhead connector it is a resistance wire to the coil. When HEI it would go to the BAT side. If the resistance wire was changed at the bulkhead to to the BAT side of the HEI it would still be HOT in both the RUN and START …Hei Distributor Plug Wiring Diagram Chevy 350. Distributors & hei installations section 1 authored by wes vann, with minor revisions and photos by schurkey photo 1. ... Spark plug wire diagram corvetteforum chevrolet corvette forum discussion chevy sbc and bbc firing order gtsparkplugs wiring for plugs 1993 pickup with 5 7 v8 if …all my videos are in 1080p so check that outjust an idea on how the GM HEI electronic distributor is wired up thanks for watching and please subscribe ….

Testing the pickup. When checking for 12 volts, do so while you are cranking the engine. If the battery voltage drops below 10.5 volts while cranking, you probably have a bad battery. This low voltage could be insufficient to get the distributor to fire. Use a volt meter to test the hot wire while a buddy cranks the engine over.30. 31. Having a Chevy 350 wiring diagram to distributor is essential for diagnosing the ignition system of your vehicle. This diagram helps you identify the various components that make up the electrical circuit, such as the spark plugs, the distributor, and other parts. It also helps you troubleshoot any problems that appear in the system so ...A single 12-volt wire is all that is required to function, and it can be easily stabbed into any distributor-fired Chevrolet engine. It’s a staple among hot rodders. GM’s HEI distributor was envisioned and ultimately built by the Delco-Remy Division of General Motors and found its way into production vehicles starting in 1974.If it is a small cap with two weatherpak connectors, one four wire, one two you have a computer controlled fuel injection distributor that requires a computer to advance the timing. The two wire connector goes to the coil, the four wire to the ECM. 1973/8 450sl 1966 Lincoln Continental, 2008 Lexus LS600h, 2010 Tundo RW.The diagram will show you how the terminal on the distributor should be connected to the battery, starter, and coil. It will also give you detailed information about how to connect the ignition module, rotor, and cap. Next, begin the process of wiring the Chevy 350 distributor by connecting the primary leads to the corresponding terminal on the ...May 26, 2011 · Chevrolet Master. 6,982 Answers. That distributor is an easy one. You need to connect the harness attached to the distributor housing to the cap. There is a marking on the cap that says "Batt" Connect that to the hot lead from the ignition switch that is on (with 12V present) and off with switch off. Likely the connector and wire are still in ... Once you have the connector, plug it in and turn it on. You should see a green light come on, indicating that the module is ready to be used. Once you see that light, it’s time to turn on the power. To do this, press and hold the “Power” button for a few seconds, then release it.A diagram makes the complex wiring connections easier to understand and troubleshoot, and can save time and money. Installing an HEI Distributor Wiring Diagram on a Chevy 350 engine is an important part of any performance upgrade. This diagram will provide information on exactly where each wire goes and what it does.High-quality, durable and dependable Chevrolet Performance distributors optimize the performance of your GM engine. These distributors are interchangeable among standard GM Small-Block and Big-Block V-8s. For tall-deck engines, use adjustable slip collar distributor P/N 10093387. NOTE: Melonized distributor gear P/N 10456413 is required on all ... Sbc hei distributor wiring diagram, GM knows this, but often cars get converted to HEI and thin wire or the old resistance wire is used. This will produce weak spark, especially at higher RPM. Notes on wiring for an "HEI" distributor with the coil in the cap; If you are converting from a points type distributor, you have to make sure that the "resistance" power wire is bypassed ..., Tach Signal: The Pro-Billet HEI Distributor features a Gray Tach Output wire which provides a clean signal for most tachometers and even some aftermarket fuel injection systems. The signal output is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the built-in rev limiter. 1 - Tube of Gear Lubricant, 30. 31. Having a Chevy 350 wiring diagram to distributor is essential for diagnosing the ignition system of your vehicle. This diagram helps you identify the various components that make up the electrical circuit, such as the spark plugs, the distributor, and other parts. It also helps you troubleshoot any problems that appear in the system so ..., Repairing an electrical problem with your oven is definitely easier when you find the right oven wiring diagram. Check out this guide to oven wiring problems, and to finding those oven wiring diagrams that you need., Classic Offshore - Wiring Diagram Needed: HEI + Voltmeter, Mercuiser 288 350 SBC - So I have a mercruiser 260, which is a 350 small block chevy. Original date is 1978, and at that time it had a standard distributor, and an ammeter. In all my schemetics, the output of the alternator goes all the way forward to the front, It required the use of a separate coil and ignition box. Under all those wires is an MSD distributor for use with an MSD 6 box and an ignition retard for nitrous use. On the dyno or at the track, this micro adjuster for setting the timing is a boon. It allows precise changes in timing as small as 1/4 degree., GM knows this, but often cars get converted to HEI and thin wire or the old resistance wire is used. This will produce weak spark, especially at higher RPM. Notes on wiring for an "HEI" distributor with the coil in the cap; If you are converting from a points type distributor, you have to make sure that the "resistance" power wire is bypassed ..., Testing the pickup. When checking for 12 volts, do so while you are cranking the engine. If the battery voltage drops below 10.5 volts while cranking, you probably have a bad battery. This low voltage could be insufficient to get the distributor to fire. Use a volt meter to test the hot wire while a buddy cranks the engine over., Here are a couple diagrams illustrating the wiring of the points and HEI ignition systems. The first diagram shows a typical stock points system. The second diagram shows where the wires go when converting to HEI. Note that the new HEI power wire can be connected to the bulkhead connector as described in the above paragraph, or it can be routed ..., 11/02 0017-004400 DISTRIBUTOR INSTALLATION Disconnect the Flame-Thrower wire harness from the distributor cap. Remove the cap from the distributor housing. Install the distributor gasket over the gear, and up to the distributor collar. (gasket not required on Oldsmobile and Ford applications)., ballast resistor (or loom resistance wire) in the wire between the ignition switch and the coil (+) terminal. One easy way to find the ignition ballast resistor is to check the service manual for your vehicle. Example: Vehicles with a Ford TFI or Delco HEI require adding an ignition ballast resistor in the wire from the ignition switch. , Classic Offshore - Wiring Diagram Needed: HEI + Voltmeter, Mercuiser 288 350 SBC - So I have a mercruiser 260, which is a 350 small block chevy. Original date is 1978, and at that time it had a standard distributor, and an ammeter. In all my schemetics, the output of the alternator goes all the way forward to the front, Tach Signal: The Pro-Billet HEI Distributor features a Gray Tach Output wire which provides a clean signal for most tachometers and even some aftermarket fuel injection systems. The signal output is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the built-in rev limiter. 1 - Tube of Gear Lubricant, Dec 29, 2006 · If it is a small cap with two weatherpak connectors, one four wire, one two you have a computer controlled fuel injection distributor that requires a computer to advance the timing. The two wire connector goes to the coil, the four wire to the ECM. 1973/8 450sl 1966 Lincoln Continental, 2008 Lexus LS600h, 2010 Tundo RW. , MAS HEI Distributor & Spark Plug Wires & FREE 170072 and Tachometer Pigtail Wire Harness Combo Kit Replacement For Chevy Chevrolet GMC SBC BBC . HEI distributor compatible with Chevy and GM small block/big block. A distributor is a device in the ignition system of an internal combustion engine that routes high voltage from the …, Dec 1, 2017 · An Accel ignition wiring diagram is essentially a chart that concisely lays out the various wires, switches, and components that make up a specific electrical system. A good wiring diagram will include color coding for each type of wire, helping you identify which wire is responsible for what task. The spark plug is of particular importance to ... , High-quality, durable and dependable Chevrolet Performance distributors optimize the performance of your GM engine. These distributors are interchangeable among standard GM Small-Block and Big-Block V-8s. For tall-deck engines, use adjustable slip collar distributor P/N 10093387. NOTE: Melonized distributor gear P/N 10456413 is required on all ... , The Chevy 350 HEI Distributor Wiring Diagram is an essential guide for anyone who needs to understand the wiring of their Chevy engine. This diagram shows the connections between the distributor, spark plugs, wires, and other components of the engine. It also shows which colors of wires connect to which parts of the engine., In this video I find tdc on number using the timing marks on the harmonic balance. I then follow the firing order and put the spark plug wires on and start t..., Fortunately, there is a wiring diagram available to help you make sure your HEI distributor is correctly wired - a Chevy 350 Hei Distributor Wiring Diagram. This diagram is incredibly helpful when it comes to making sure you have all of your connections in the right places., The Components of the Hei Distributor Wiring Diagram Ford A Hei Distributor Wiring Diagram Ford is an electrical drawing that shows the connections and components of an ignition system. This diagram contains a variety of abbreviations and symbols to represent each component and connection. The common abbreviations and symbols are listed below:, “The HyperSpark Ready-to-Run Distributor is the easiest way to achieve timing control through your Sniper EFI system,” said Colin Kinser of Holley. “The distributor produces a stout spark output for engines up to 450 horsepower and thanks to the unique Holley phasing cap, the EFI sync signal and timing of the engine is easy to set up.”, A single 12-volt wire is all that is required to function, and it can be easily stabbed into any distributor-fired Chevrolet engine. It’s a staple among hot rodders. GM’s HEI distributor was envisioned and ultimately built by the Delco-Remy Division of General Motors and found its way into production vehicles starting in 1974., A Chevy 350 HEI Distributor wiring diagram outlines the connections between each component in the distributor. It also provides instructions on how to connect each wire to the correct terminal on the distributor cap and rotor. The diagram also includes a troubleshooting guide to help you identify any potential wiring issues., This will help give you confidence that your spark plug wires will go back in the correct order before you crank the engine over. Learn the firing order and distributor rotation for …, Oct 22, 2017 · The Chevy 350 Hei Distributor Wiring Diagram can be a helpful tool when it comes to troubleshooting an issue with your car. It provides information on the situation in real time. As soon as a problem occurs, this diagram can be used to help identify what may be causing it. It details the connection of each component, including voltage, ground ... , This is even easier if you have an HEI. You just run a power wire from the switch to the Dizzy. Step two for the Voltage regulator and the Generator. If you are using an Alternator step up and buy the internally regulated one it's just alot easier. Run the wire directly from the Alternator to the battery with no breaks and use heavy wire., 11/02 0017-004400 DISTRIBUTOR INSTALLATION Disconnect the Flame-Thrower wire harness from the distributor cap. Remove the cap from the distributor housing. Install …, 2. Remove the coil wire from the distributor cap and position the terminal so it is approximately 1/2" from a good ground. 3. Disconnect the MSD White wire from the distributor points or the ignition amplifier. 4. Turn the ignition to the ON position. DO NOT CRANK THE ENGINE. 5. Tap the White wire to ground several times., The first is to obtain a good salvage-yard replacement. Remember, the 1974-1980 HEI distributors used the same advance weights, springs, and stops as most of the points-type units, making this a ..., A Hi-Intensity Induction, or HEI, converter is used on many SBC Chevys. It is the HEI Distributor’s job to make it easier for an electrical activity to be transferred from the ignition coils to the sparking plugs. SBC order distributor cap on SBC Chevy V8 cylinders is often rotated forward for firing instructions., Atlanta,Ga. In the top of the cap where the square portion is there are 2 terminals. The one on the right is where you put your switched hot. The other terminal on the left is the tach signal. Then the plug from the distributor goes as you can see in the rear 2 terminals. The front 2 are for your hot and tach. 1., Distributor Wire Harness Connections: Red Wire- Provides +12 Volts DC to the trigger assembly inside of the Vertex® Electronic Distributor. The 12 Volts DC provided to this terminal must be present in both the CRANK (start) and RUN (on) positions of the ignition switch only. White Wire- Provides a signal for driving an electronic tachometer.