gmpp tbi vortec intake ?s - Third Generation F-Body Message Boards

ratrapp · 05-25-2009, 10:48 AM

i'm nearing the end of doing a 5.7 vortec swap in my friends 91rs.we got the gmpp tbi intake and my question is where do you hook up the power brake fitting and the vacuum tree fitting?there is only one fitting hole at the back of the intake that i was going to hook up the vacuum tree fitting but i'm going to have te reroute the fuel lines as they completely cover the hole.any pics would be nice.i had almost thought about drilling and tapping a hole near the front of the tb like the factory did so i could reuse the stock metal line for the power brakes.

ratrapp · 05-26-2009, 06:48 AM

no one ever used this intake before?

Nub383 · 05-27-2009, 12:57 AM

I used that hole to the rear of the Tbi. I used a street elbow (3/8" inverted flare X 3/8" male pipe thread) and put steel line that I bent under my fuel lines over to the brake booster hose. Works like a charm.

ratrapp · 05-27-2009, 07:11 AM

yeah,but i'm still short i vacuum fitting unless i tee it off from the same place.

Nub383 · 05-27-2009, 09:30 PM

You could tee it off right there. Just need the right plumbing parts.