Car will be running great, but about once a month something happens that totally fries the distributor.When this happens the car does not give any kind of warning. It just will not crank the next time. I have put two new distributors in it, about 30 days apart. The timing seems fine. Car doesn't backfire. Runs smooth. Could this be a ground wire shorting out somewhere? If so where would I begin to search for this wire? If someone knows the answer to this, I sure would appreciate it. These distributors are getting costly. I have the dist's put on, but nobody seems to be able to tell me what is causing them to short out in the first place.