[pistonbroke]

When you say hot wired did you remove all the cars stock wiring from the coil? and are you goin directly to the battery with your hot wire? If you have a intermittent short or grounding which is what I highly suspect you need to totally eliminate the cars wiring and work backwards to find the source. The other thing I would look at is the main lead from the coil to the distributor cap. Had one do a similar thing once. I can't explain why ,it just did and caused a lot of head scratching. The remote fuel supply bypassing all but the carb would be my next approach. Tim