Shuts off when hot?

Thank you everyone for the suggestions, the issue has been with 3 different distributors, a single point, a pertronic electric, the factory dual point both before and after being rebuilt with NOS parts and run on a SUN machine to test it. 2 new coils and one known good used coil taken off my other car. I've checked voltages at the coil, ballast, junction block, ignition switch connector, with all different configuration of carbs, ballast, distributors and coils that I can't remember all the results other than it dies after it warms up. I will try more diagnostics today.