Quote Originally Posted by EHB View Post
oh i'll be running the same setup you have except i have the overkill pcm and you have zzp . i just need to put the pulley on and change the plugs. the funny thing about these cars is you may get 0 KR , and i could still have some.
I've seen a few people with headers, ported blower, open cone intake, 104s, 180* tstat and in car tune still get knock on a 3.4 pulley.

ZZP was saying they thought they found the reason behind this, they started to notice something as they would tear these engines apart, as you know the cylinder openings on the head gaskets are not perfectly round, and on some cars part of the gasket would hang into the combustion chamber, and it would get red hot and cause pre ignition of fuel causing the engine to have knock retard.