Thanks for the advice guys, really appreciate it! I am a rookie trying to learn.
I'm not really sure the distributor is the problem right now, but because the guy who fixed it last time said I should replace it I am now going to.
Tried the ballast resistor. Both cars always have one in the glove box. The coil was replaced a couple of months ago because I snapped a stud hooking up the tack.
I went thru the ignition system tests in the service manual. If I'm using my multimeter right it seems to be pointing to the distributor.
Tomorrow I will have a new distributor, coil, ecu, timing light and torque wrench. I figure with 2 old mopars it wouldn't hurt to have some spare parts in the shop.
Any suggestions of things to check and how to check them are welcome.
Larry, thanks for the pic...are small blocks & big blocks the same?