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305 tbi to 383 carb

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Old Aug 13, 2007 | 05:00 PM
  #1  
marballfire's Avatar
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From: Danbury, CT
Car: 88 Camaro SC
Engine: 350
Transmission: T-5
Axle/Gears: 3.42 POSI
305 tbi to 383 carb

I just bought a 383 to do a swap for my tbi 305. The 383 is a carburated engine and doesn't need the computer and electric fuel pump. I just wanna know how difficult it would be to do the swap. The 383 is a complete engine, ignition, fuel pump, alternator, oil pump, radiator, 750 cfm carb. The engine ran great in the donor car, but i don't know much about bypassing all the computer stuff the car currently uses. Any help is greatly appreciated. Thanks
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Old Aug 13, 2007 | 05:40 PM
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five7kid's Avatar
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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 from the thirdgen.org homepage about converting from EFI to carb (the link is also in the "read me" sticky at the top of the Carburetor forum).
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Old Aug 15, 2007 | 05:34 PM
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From: Danbury, CT
Car: 88 Camaro SC
Engine: 350
Transmission: T-5
Axle/Gears: 3.42 POSI
Re: 305 tbi to 383 carb

that article helped out alot...thanks. can anyone tell me if the tach and speedo are electrically controlled or mechanically?
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Old Aug 15, 2007 | 11:59 PM
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five7kid's Avatar
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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
The tach is electronic.

The speedometer varied. If there is a cable going from your transmission tailshaft, it's mechanical. If wires, it's electronic.
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