Originally Posted by ruderunner
Originally Posted by poorboy
The ignition wire that would normally go to the + side of the coil on your Dodge now needs to go to the + terminal on your GM electronic ignition. If you have a tach, there should be a connection place on the GM dist to connect your tach lead that normally would have connected to the + coil wire on the Dodge stuff.

Can't help you on that GM 1 wire alt. They call it a 1 wire, but most I've seen have 2 wires, so I'm confused. LOL! Gene


Poorboy is close on the distributor. The HEI system needs full voltage not the lower coil voltage of the Mopar system. Take the power from the keyed side of the ballast resistor.

As for the alternator, iirc the second small wire is for a warning light. Not needed for the alternator to function. But you do have to bring the rpms up to activate the internal regulator. Honestly id keep the stock charging system because of the tricks you can do in case of roadside failure of the regulator or wiring.


Thank you, I ended up spending a couple days on the wiring with the manual. It is all working perfectly now, lights etc. I found out leaving the vacuum advance disconnected is the best way to go so far on the HEI. I had already decided to go with the one wire gm alternator and it is charging well by just using the 10 ga wire that was the feed from the dual field alternator. I had to switch locations with the connection on the bulkhead connector as like many mopars, the heat generated through that wire melts away the retention on the connector so you get a bad connection which creates more heat.

I have eliminated a milk crate full of old wiring and parts.