Stick with TPI or go for carburator?
Thread Starter
Member
Joined: May 2008
Posts: 286
Likes: 1
From: Cicero, IL.
Car: 1987 Pontiac Firebird Trans Am WS6
Engine: SBC 350
Transmission: T-56
Axle/Gears: 3.70:1 BW M78 9-Bolt Posi
Stick with TPI or go for carburator?
Sometimes part of me just doesn't want to deal with the ECM. Has anyone gone from TPI to a carburator? Do you have to run a new fuel line, or is it even possible to run a carb with the stock electric fuel pump and an adjustable fuel pressure regulator? I don't know jack about afp regulators, and I don't know if it's even possible to get the psi down that low. Doesn't a carb run at about 8 psi? If it is possible, I was thinking that I would get a vacuum advance distributor. The plus side is that it would be cheaper for an intake, but the downside is that I'd have to deal with an effin carb. Any thoughts?
Thread Starter
Member
Joined: May 2008
Posts: 286
Likes: 1
From: Cicero, IL.
Car: 1987 Pontiac Firebird Trans Am WS6
Engine: SBC 350
Transmission: T-56
Axle/Gears: 3.70:1 BW M78 9-Bolt Posi
Re: Stick with TPI or go for carburator?
Forgot to add that I'm amidst building a motor, so I have options. It's not like the motor is in the car and I'm gonna be screwing around with it. It's gonna be all set up, whichever route I decide to go, before it goes in the car. I've already got a Comp 306 cam, and a set of ProComp heads (2.02/1.60 190cc intake runners) should be here by Monday.
Joined: Dec 2005
Posts: 6,499
Likes: 31
From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Stick with TPI or go for carburator?
You'll be better off in the long run staying TPI, but that may not be the best for performance. That cam is way too big for a TPI car. Consider a stealth ram.
Thread Starter
Member
Joined: May 2008
Posts: 286
Likes: 1
From: Cicero, IL.
Car: 1987 Pontiac Firebird Trans Am WS6
Engine: SBC 350
Transmission: T-56
Axle/Gears: 3.70:1 BW M78 9-Bolt Posi
Re: Stick with TPI or go for carburator?
If I go with MPFI I'm going to go with the hsr.
Joined: Oct 2001
Posts: 12,219
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Stick with TPI or go for carburator?
EFI gets my vote.
Supreme Member
Joined: Feb 2006
Posts: 1,366
Likes: 1
From: St.Louis, IL
Car: 1988 Camaro
Engine: 377
Transmission: TH350; Circle D 4200 converter
Axle/Gears: Ford 9"
Re: Stick with TPI or go for carburator?
I vote carbureted. I converted my car over. Easy to make awesome power on the cheap, and easy to find parts.
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Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Stick with TPI or go for carburator?
https://www.thirdgen.org/carbswap
http://5finger.8m.com/tpi2carb/tpi2carb.html
Commonly done on here with a Mallory #4309 AFPR or similar unless you want to drop the tank to install a carb pump 
http://5finger.8m.com/tpi2carb/tpi2carb.html
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