distributor

barbee6043,

I suspect that most who use the GM HEI module are converting from points. It is a little easier to wire than the Mopar electronic ignition if you don't already have a harness for that. It is also a little better in that you eliminate the ballast resistor, plus easier to find parts.

If your car already has e-ignition (71+?), easiest to stay with the Mopar ECU. Good ECU's are getting harder to find, so some have taken to gutting the case and installing a GM HEI under the cover, to keep the connectors and factory look.