Watch the video on YouTube. GM HEI electronic distributor how to wire and run install DIY
SOURCE: need wireing diagram to change 72 nova over to hei distributor
Hey , just take the positive wire from the coil you are removing and feed it to the + terminal on the HEI dist. cap.the other terminal under there is for your tachometer. If you are mounting a master kill switch in the bumper for drag racing- attatch the kill wire to the tach terminal also.
Thats it you just plug the three wire pigtail from the dist. base(pickup) to the cap and you are off.
Remember firing order is 18436572 in a clockwise direction. to find #1 remove #1 plug and have someone"bump" the engine over while holding your finger over the hole-carefull. then line up the slotted mark on the crank pulley with the big notch on the timing indicator. Good luck
SOURCE: HEI Coil is burning out
If the Electrical system is grounding out, particularly the hot lead to the coil. then you will fry coils. Check your Positive leads at the fuse box for continuity to ground. 1st check the ignition wire i.e. red wire going to your coil. Disconnect the ignition wire from the coil or distributor (depending where your coil is located). If it has continuity to ground, then go to your fuse box and pull out all your fuses and test each terminal for continuity to ground until you find which circuit is grounding out and polluting the rest of the positive circuitry. If it is only the ignition hot wire then you know that is where the problem is. If it is coming into the fuse block from another positive source, isolate that source by not allowing it to come into contact with + current.
SOURCE: wiring diagram
Do you have any connectors left intact? All you should need is the alternator power, grd, starter, distributor power, advance
SOURCE: HEI DISTRIBUTOR PROBLEMS
This should help, firing order is counterclockwise, 1,8,4,3,6,5,7,2.
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