Thanks, those are good tips for everyone. I have already tried many of them. I have moved the pickup and coil wires many times, with no change. I am using the MSD supplied cable to the coil, is it twisted inside already?

I will do more "twister" things. I have the main power wires to the MSD twisted directly to the battery. I will also vent a cap as others have recommended.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1