The plugs are definately not rich lol... Not sure what you are talking about.

if they were rich the porcelian would be black, but its not, its clean as can be.

I'm looking for help on the signs of detonation and pre ignition. I noticed the specks and I'm sure I have slight pinging although it's not audible. Also how the ash area on the negative electrodes are broken up almost seems like something is going on.

Anybody here plug experts?