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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 04-01-2009, 07:21 PM   #1
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Join Date: Aug 2006
Location: Westchester,NY
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Car: 1984 Trans Am
Engine: 383 4 bbl
Transmission: T-56
Axle/Gears: eaton posi w/ 4.11's

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Should I go with a double pumper?
Gettin ready to bolt up a T-5 behind my 383 and i was just wondering whether i should get rid of my 770 street avenger. i dont like the carb as it is because it feels like its not running right so i want to replace it anyway. just lookin for any thoughts or recommendations. the motor is 9.5 to 1 compression ad it made 405hp and 440tq to the crank
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Old 04-02-2009, 12:08 AM   #2
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Car: 82 Berlinetta(2)/57 Bel Air
Engine: LS1 (LS1)/LQ4
Transmission: 4L60E (T56)/4L80E
Axle/Gears: 10B 3.73(9" 4.11)/8.2" 4.11

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Your T5 isn't going to be very happy with you for hooking it to a 383, but it'll be happier that you're going to a double pumper.
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Old 04-02-2009, 02:45 PM   #3
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Car: 1984 Trans Am
Engine: 383 4 bbl
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Axle/Gears: eaton posi w/ 4.11's

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Re: Should I go with a double pumper?
Yea so ive heard haha. it wont be a stock T-5 by the time im done with it so hopefully she'll hold up. is a 750 dp too much carb though? my buddy might have one for cheap that i could rebuild and maybe put a quick adjustment metering block in for easy tuning.
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Old 04-02-2009, 06:04 PM   #4
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Car: 82 Berlinetta(2)/57 Bel Air
Engine: LS1 (LS1)/LQ4
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Axle/Gears: 10B 3.73(9" 4.11)/8.2" 4.11

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750 CFM DP should be fine on a 400-HP 383.
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Old 04-03-2009, 10:05 AM   #5
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Re: Should I go with a double pumper?
excellant thanks five7
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Old 04-03-2009, 10:05 AM
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