Correct ballast resistor

Correct, what I was attempting to point out. The coil side is the lower resistance. Maybe a high speed miss with more resistance. Look up your coil specs. The coil/ resistor specs, over the years are in the back end of chapter 8 in the manuals. You can download them free, from MyMopar.com. Several of them got them because of some of the guys right here
The motor is a turd at low rpm, but that is most likely due to low compression and a 300 duration cam installed 5 degrees retarded. The motor starts pulling OK around 2500-3000 rpm but does have a surging/missing issue. That’s what I’m chasing.