Ironxcross

iTrader: (8)

I've seen two types of airfoils, the one that clips to the TB and the other that has a screw and a piece you place inside the TB. I have the one with the screw, and I'm wondering if that is stopping my PCV vacuum.

-PEPE-

iTrader: (10)

get the screw in for the TB, better yet save your money and buy my brand new in the box Holley 58mm billet Throttle Body , pm me if you're interested. The one that clips in is a PIA to get right if it's what I think your talking about.

Speed Density

iTrader: (38)

Bah!!! The clip one isnt that bad. But in all honesty the Airfoil is a waste.

They say it gains on the dyno, but that could have been cooler dyno room, or changed oil or an act of god.

Save your money.

Ironxcross

iTrader: (8)

well i've already had it (the screw and nut type), but I think its blocking my pcv because I've got no vacuum. Anyone run into a similar situation?

anaik

I have the same kind of airfoil and noticed the rubber gasket under the TB cover being sucked down. I took a file and cut a couple of grooves into the top part of the airfoil allowing air into the chamber.