1990 LA 360 stops running when hot (help please)

Always nice to post some follow up on things. Had any further problems?? Figure it out?? I just had my 90 W-150 w/318 cutoff while driving home from work last night wouldn’t restart for about 10 minutes, and it wouldn’t restart for a few minutes after fueling up on the way to work earlier. I’ve converted from the computer and fuel injection to the old style Chrysler electronic ignition with a carb, utilizing the in tank electric fuel with a regulator and was able to see I still had fuel pressure and fuel at the carb. The pickup coil and ecu are year old Filko brand items, has a newer ballast resister and wiring harness. The plug wires and plugs are new. The only older item is the coil, which for now is under suspicion. Will be double checking for solid grounds and connections, do some basic tests with a voltmeter but will be carrying a box of spares and the voltmeter so when it happens again I can hopefully pinpoint the problem when hot.