Thread: Plog eliminate Kock ?

Originally Posted by Fivefingerdeathpunch

http://www.grandprixforums.net/did-i...ml#post1003705

You already have a thread with lots of info in it.

You need to read up on how to mod a car and not just read what a website that sells parts has to say.

I have already told you that a 3.4 with only a downpipe will likely knock, you need to have more exhaust flow.

I've also said that 104 spark plugs are too cold and you should run 605's.

I always thought 104s were better. Time to switch them out for 605s.