spark plug problems
I am running 18 psi. Is this too much boost for this plug? I am also getting random misfire codes. Obviously because of plug problems. Want to get this fixed before I mess something up. My car was tuned at GMR Speed. I have left boost alone. Just wondering what you all think. Could be getting KR as well, which is why I'd like to see some hi-def pics of the plugs.
Charlie


