Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

1990 irocz L98 SD TPI converted to Carb

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Old Feb 19, 2009 | 09:05 PM
  #1  
fastfbody's Avatar
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From: Smithville TN
Car: 1989 GTA trans am
Engine: L98 350 tpi
Transmission: 700r4 built
Axle/Gears: 3.45 4th gen 10 bolt
1990 irocz L98 SD TPI converted to Carb

just want to know what all ill have to do and how hard it will be . I have a New Holly Contender intake ,670 cfm Holly Street Dom carb ,a HEI distributor off a carbed L46 car ,and a manual fuel pump .

also the eltric fuel pump just died and was the final straw . (reason it died is cause the way it was running it took allot of work to get started ).I heard that a manual fuel pump can pull the gas threw the old fuel pump.


truly i would never think of converting it but im having wiring issues that have been making the car run awful . i know the swap will fix it and make it faster with my modds i already have .


Any imput would be helpful thanks : )

If someone wants to come do the swap for me ill let then have the TPI system as payment lol. Thats if you live close to Murfreesboro Tenneesse

Last edited by fastfbody; Feb 19, 2009 at 09:21 PM.
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Old Feb 20, 2009 | 12:56 AM
  #2  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
There is a tech article linked in the welcome to the carb forum sticky on the job.

Trying to pull fuel through a dead in-tank electric is a recipe for disaster. If you think you have problems now, wait until you've been trying to run that way for awhile.

The SA is one of my least favorite carb choices (along with any carb with Edelbrock on it). Kind of to carbs what TPI is to EFI.
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Old Feb 20, 2009 | 01:08 PM
  #3  
fastfbody's Avatar
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Joined: Nov 2004
Posts: 482
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From: Smithville TN
Car: 1989 GTA trans am
Engine: L98 350 tpi
Transmission: 700r4 built
Axle/Gears: 3.45 4th gen 10 bolt
Re: 1990 irocz L98 SD TPI converted to Carb

K i would still like to hear from some people that have done the swap.
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Old Feb 20, 2009 | 05:47 PM
  #4  
five7kid's Avatar
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25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Or, you could for threads on the topic.
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