Originally Posted by
Epstein
Why do 1 and 4 look worse than 2 and 3?
They are all equally crappy, I rubbed my fingers on those two to see if it was oil or black soot. It was soot from running retarded rich. New plugs on the way. I think I'm going to trun some coppers when I have to drive it to get tuned. Destroying iridium plugs really sucks $$$