Quote Originally Posted by wrenchin hobo View Post
www.airram.com

These guys know alot about 4.7 performance. I never had the opportunity to work on them. They can also tell you who to go to for custom tuning if you want to upgrade to H.O. cams or ported heads and such.

http://www.youtube.com/watch?v=zQ17C2NAyKk
What does that get us if we do those upgrades?