@Bobby D posted:
I have had two Manga-spark dry pack coils go bad on me. I wasted a lot time messing with the carbs and distributor thinking they were the cause.
Bobby’s comment reminded me that after I swapped out my regular distributer and coil with the then new Magnaspark I had the same problem you’re describing. The car would run great then sputter, cough, choke, and die. After about 10-15 minutes it’d fire right up and go a short distance then start the process over again. Changed to a new coil and, voila, the problem was gone.