Quote Originally Posted by BillBoost37 View Post
Plugs are too cold for 3.8 and 180 is unneeded too.. put that moola into a real mod.
I might be wrong...I'll have to check the box, I might've put iridium 605's in last time. I went through three sets of plugs trying to fix my rough idle, when all the while it was that darned PCM. I had copper 104's last time because I was planning to get headers shortly and run the 3.4 pulley, but I believe they are 605's now.