[eb61636]

I just installed a Pertronix on my 050 distributor and the tach is jumping all over the place all of a sudden.

I had this same exact Pertronix unit on my old engine, so I know it works and my tach was working fine 10 minutes before with the points installed.

I tightened all the connectors...checked my air gap (.030"), cleaned and lubed the rotor and cap, ensured the distributor was all the way down in the hole, etc.

This is the third Pertronix unit I have used (not on same car) and the first time I've ever had problems with one.

Any ideas on why my tach swings intermittently on its own since I installed this Pertronix?

Thanks,
erik.