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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.

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Old 04-19-2010, 05:32 PM   #1
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Car: 1988 firebird formula
Engine: 305/ soon to be carbed
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tbi to carb conversion

hello all,
I'm Marty. I just bought a pretty clean 3rd gen 88 formula and definately want to go carb, im not into the whole trying to tune a tbi system. i know i need distributor, intake mani, carb, adj fpr w/ return line. what else might i need? basically what all do i need to convert to carb?

also i have no idea what distributor to run so can someone please shoot me some part numbers so i can look them up on summit. also i wasnt sure what dist gear i would need iron or steel as i have no idea if these are roller motors or not. once carbed and properly tuned for the cam will any of the shelf SBC cam work?

Thanks
m
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Old 04-19-2010, 06:17 PM   #2
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Car: 92 camaro rs-project car
Engine: 305 tbi
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Re: tbi to carb conversion

http://www.thirdgen.org/techboard/ca...bi-update.html (carb install from tbi UPDATE !!!!!!!!!!!!!!!!)

hopefully this will help you out.
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Old 04-19-2010, 09:58 PM   #3
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Re: tbi to carb conversion

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Originally Posted by one92rs View Post

it helped a lot. still curious are these roller motors or flat tappets? and will basic SBC cams work? what type of distributor gear do i need, or does it matter? thanks
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Old 04-20-2010, 11:39 AM   #4
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Car: 1989 Chevy Camaro Iroc-Z
Engine: L98 B2L 350 TPI
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Re: tbi to carb conversion

your motor is a hydro rollor cam if it is an 88 motor.
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1989 Chevy Camaro 350 TPI 700R4 9 bolt 2.77 gears Completly stock except Muffler (for now ). Sold to Dad. I will get another one again. Finally got my Camaro back from Dad HELL YEAH!
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Old 04-20-2010, 11:42 AM   #5
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Car: 1988 firebird formula
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Re: tbi to carb conversion

Quote:
Originally Posted by Johnknight1981 View Post
your motor is a hydro rollor cam if it is an 88 motor.
ok thank you do you have any idea what distributor i need for a carb swap? tried asking above and got no answer
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Old 04-20-2010, 01:37 PM   #6
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The distributor need vacuum and mechanical advance. There are a lot of choices out there that meet that requirement.
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Old 04-20-2010, 01:37 PM
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