[Wicked]

I don't remember, does the ECT and distributor harness run through the same leg of the engine harness. Maybe there is a loose wire as you said.

Also, kinda off the wall, but my Cobra would do the same thing when I first put my switchable chip in. The switch was not fully secure and would bounce around and the ignition would cut out for a split second over bumps. Only occured 2 or 3 times but it was an easy catch. I know you don't have a chip, but maybe your Tweecer wiring or connection.