Electrical or ground issue?

Valiant273 said
This Spring my son and I have replaced or spliced as best as we could but still have an aggravating complete power loss/shutoff that can last 1-2 seconds and then it comes back. This may happen a number of times until the temp reaches about 150F. It starts and idles fine but once you give it some juice it can completely drop but not die. Until it gets to the magic 150 F and then it runs perfectly. I have replaced the dist cap/rotor and the main wire from cap to coil. Swapped coil and ICM as I had spares. Checked/fixed grounds anywhere we thought it could be a problem.

Well, it sounds like an intermittent connection that is improved by heat. Usually it's the other way around. Any time you have a high amp condition, like ya'll did with the choke/ballast, the female connectors can lose their tension on the male side. I'd go back and remove the female connectors from the bulkhead and inspect thoroughly. You said it fried up to the bulkhead. It likely did not stop there.