[Silverback51]

A roller cam should have either a steel gear or a bronze gear. A cast gear will wear out in no time.

I have a roller cam in mine and a steel gear on the distributor. No issues with this combo. However I will be changing to a bronze gear when I but in the new distributor.

Is it possible that the steel gear was installed wrong on your distributor? Generally the steel and bronze gears do not have the roll pin hole drilled. If I remember right, the tolerance for locating this to the distributor shaft is .010. That is close and needs to be checked after installation.