The intake that i got is the edelbrock performer w/ EGR and a holley adaptor for TBI. I already have my old manifold off, and when comparing the two, i noticed that my old one's water passages are different then the new ones. The new one (looking at the manifold from the front as it would be on the car) doesn't have the two water passages in the back. My older one has the rear left water passage blocked off as well as the middle right. The new manifold has the front and the middle water passages, but nothing in the rear. Will this be a problem when i install it?
Also, my old tbi manifold had two egr openings, one was round and the other was rectangular. The new manifold has the round opening, but instead of the rectangular one it has a smaller round opening which won't even line up with the egr valve.

Thirdly, the new intake manifold doesn't have an opening for the power brake vacuum line. What should i do with this problem?

The part # of the manifold is 3701, should i just return this manifold and get the one specifically for tbi? Thanks for any help, i'm hoping to get this done today.


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Pat Hirsz
www.iit.edu/~hirspat/MyPage2.htm
88 305TBI
Mods:Hooker Aerochamber 3" exhaust, gutted kitty, March pullies, no smog, 180 thermo,
14x4 K&N, 3.42 gears, Ultimate TBI Mods,AFPR,
Eibach springs with KYB's all around,
Harwood cowl hood, Z-28 wing, fresh paint(black)
120,000 miles, 5spd, T-tops
Edelbrock Performer TBI w/ MSD ignition & wire getting installed next week,slp headers on its way

92 RS, 305TBI, auto, 3.08 gears, 180 thermo, glasspack (no muffler)

 

To avoid headaches, I think I would just go get the right manifold.

I've installed the TBI performer on the trucks before and its pretty slam dunk.

Out with the old, in with the new.

Good luck.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

R.I.P. #3
My favorite quote about D.E. "He can see air"

 

there's nothing at all wrong with that manifold. Are you just having problems figuring how to make stuff work?

you don't need water passages or exhaust crossovers for a manifold to work. Running the brake booster is just a matter of hooking up a vacuum line to manifold vacuum. How hard can that be?

 

That intake won't work anyway, the 3701 is for early standard bolt pattern heads. Your heads have the center intake bolts that go in on an angle. You can slot/machine it to make it fit however. Byond that, you can hook your brake booster up to the vacuum port behind the carb pad. The lack of rear coolant passages is no big deal, if you'd have bought the correct intake (they do make a performer intake for your style heads, eliminating the need for machining i pointed out above.) it would have had them anyway. You center 'coolant' passages are your exhaust crossover. As to the EGR, you're gonna have to find one that does fit, you're using a carb intake so start shopping for a carb EGR valve.
You're doing custom work here, very simple custom work no less. If you expected a bolt in swap you should have bought the perfomer TBI.
...ed