[tkb289]

Thanks guys for the comments and suggestions.

It does look like there has been some significant moisture under the cap at some point, and or lots of Ozone? I can say that the motor has never been hosed down or the car ever driven in the rain. It’s not even very humid where I live, so that pretty much leaves the distributor being manufactured or stored in a humid environment or the effects of Ozone or both?

I’ll take the metal bits apart and clean them up, then keep an eye on things from time to time. I have put over 50 miles on the car since the new cap and rotor were installed, and it’s never run better.