Coil voltage

Yep, just like this:

View attachment 1715953659
There is a nice little Aluminum adapter plate that screws to the bottom of the mopar distributors to mount the HEI module to.

It's actually a very nice, simple conversation to do. Then you no longer need the mopar electronic ecu / brain box.
Dig that! And supposed the Lil "chip" is a ALOT more reliable? And, yes, that looks like an easy one.. looks like less work than going from points to electronics, lol. Haven't done one in 30 years though