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.

1991 ws6 trans am 305 tpi to carb swap Help ?

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Old 07-25-2016, 10:42 AM
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Car: 1991 trans am
Engine: 305
Transmission: 700R4
1991 ws6 trans am 305 tpi to carb swap Help ?

I recently got my first third gen, a 1991 WS6 Trans am, and she has a tpi 305. I'm 17 and in auto classes, and I'm not a new school kinda guy. I want to throw a carburetor on there. But I'm not sure what all id have to do ?
I know I'd have to buy a new intake manifold and carburetor, and do something with the wiring harness and fuel lines.
If someone could walk me through this it would be greatly appreciated😊 please help !?
Old 07-25-2016, 10:45 AM
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Car: 91 RS VERT
Engine: 305 9.67 2.02 58 cc 282 480 108 LC
Transmission: 700R4
Axle/Gears: 4.11 POSI
Re: 1991 ws6 trans am 305 tpi to carb swap Help ?

https://www.thirdgen.org/forums/carb...s-305-tbi.html
Old 07-25-2016, 10:52 AM
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Car: 1991 trans am
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Transmission: 700R4
Re: 1991 ws6 trans am 305 tpi to carb swap Help ?

Thanks for that info!!
I'm not really wanting to do a cam swap and get too far into the motor. Just wanting to do minor work. Swap the intake and carburetor, I was hoping to stay away from getting too far into the engine.
Old 07-25-2016, 11:36 AM
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Car: 87 Formula, 91 Trans Am
Engine: 355 tpi, 305tpi
Transmission: 700r4, 700r4
Re: 1991 ws6 trans am 305 tpi to carb swap Help ?

Why? Is the tpi not running well? The car will be worth a lot more down the road left as original as possible, At least tpi-wise. If it is running good keep the tpi and use the money you would have spent on an intake and carb on other improvements like headers or exhaust.
Old 07-26-2016, 03:27 PM
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Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 1991 ws6 trans am 305 tpi to carb swap Help ?

Originally Posted by dragonasylum
Thanks for that info!!
I'm not really wanting to do a cam swap and get too far into the motor. Just wanting to do minor work. Swap the intake and carburetor, I was hoping to stay away from getting too far into the engine.
Save your money for headers and exhaust leave the TPI if that is the case.
Old 07-26-2016, 04:18 PM
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Car: 87 camaro
Engine: 350
Transmission: th350
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Re: 1991 ws6 trans am 305 tpi to carb swap Help ?



It'll be alot of time and money and you wont gain anything. It'll be less power, worse fuel economy, and wont run as smooth. Not to mention devalue the car.
Old 07-26-2016, 04:23 PM
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Re: 1991 ws6 trans am 305 tpi to carb swap Help ?

And tuned ports just look bad *** when you open the hood. Best looking intake system ever made
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