Quote Originally Posted by derpyimp View Post
I currently have 5-7* KR at WOT around 5000 rpm with engine warmed up and ambient temp of ~45 fahrenheit.
I had similar KR on my car, bone stock except shift kit. ZZP plogs + their 3" dp dropped it down to < 2'. The 180 thermostat didn't really seem to help KR on my car nor did 1 range colder plugs. I'm considering getting their 1.9 rockers today since they're on sale to try to eliminate KR entirely, but not sure if it's worth it.