[Hoop]

jwharton, good that you provided some information on the actual problem.

Sounds like something you can handle yourself and probably do not need to send out your distributor.

Is this a new install ... or have you been driving the car with it running well until this happened?

Did you install the Pertronix yourself?

There's a good chance that replacing the cap and a little adjusting on the initial advance will fix you up. (There's a tab with marks on it and a set screw on the side of the unit ... where is that set?)