Those do sometimes go out with the big cap. Sounds like we're all pretty sure thats what he has. Yes, it IS as simple as putting a 12V keyed source to it.
get one of these. red is 12V, green is tach output.
HEI DISTRIBUTOR 1 PIECE POWER & TACHOMETER PIGTAIL HARNESS
View attachment 1715526796
you can put the 12V feed on a toggle switch, OR there are 2 wires on a mopar that need tied together to get a 12V from the key, in crank AND run. Someone can probably remind me what those are, before i am able to find it. Is it the Blue and Brown off the ballast?
