- Jul 4, 2006
I recently got some work done to my head. port and polished 3 way valve job hks cams.V springs. I was wondering if with all this better air flow if I should do some sort of FM. I Pulled the plugs to see if I was running lean and they looked fine. I was thinking of going with the apexi afc2. I was going to wait until I upgraded the turbo but would this be a good idea now?