Quote Originally Posted by HEVEYMETIL View Post
Interesting. I noticed the boots were already greased, but I didn't think twice about adding more.

And am I right in assuming that switching from Iridium (stockers) to copper should NOT cause these problems?
you shouldnt of added grease and yes you could of cracked a plug and i gap at .055 for al 606s and yes copper is better because it exchanges heat better for supercharged cars to help fight detonation

it helps to have a scanner to see whats misfiring also..