Son was driving our 70 Charger RT Sat. (we keep it at his house)
Gave me a call, said car died after a "POP", car would try to restart then die when key released.If it "firing" during cranking then "stops" when key released. Could be bad ig. switch with the "Run" wiring, or no power at ballast "run" side if dual ballast.Check for power at ballast terminals on the dist. & input sides. Pop is probably just a backfire when ignition was lost at speed.

I assumed ballast resistor and took a ride to where he was with a spare and my Fluke.
Well, resistor checked OK and new one didn't help.

Found a 15 A fuse blown, replaced it but same results. Had car flat bedded to his house, $90, not too bad.
I'm thinking ignition switch or shorted wire before the ballast??

So what would be the best way to test wiring tomorrow with my tester?
Charger has a Painless system we installed, been about seven years with no hiccups.

Thanks in advance, Joe