Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Porting intake manifolds, is it a waste of time?
View Single Post
  #6 (permalink)  
Old 01-05-2005, 09:20 PM
tornado-tech's Avatar
tornado-tech tornado-tech is offline
Last photo:
Join Date: Aug 2004
Location: Kansas
Age: 49
Posts: 320
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Port matching the intake side of the manifold will definitely help upper rpm hp. If the intake is bigger than the head intake port, it will cause puddling though. If the intake is smaller than the head intake port, it will increase velocity of the a/f mixture. As far as the plenum, I'd leave it alone. If you get it too smooth, it will hurt atomization of the a/f mixture.
Reply With Quote