TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

350 Tbi V.s. 305 Tbi

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Old Jul 24, 2003 | 04:26 PM
  #1  
tyty49's Avatar
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From: Willmar, MN
Car: 91 Maro & 97 Ram & 05 Roadstar
Engine: LS1
Transmission: T56
Axle/Gears: 2.73
350 Tbi V.s. 305 Tbi

I'm doing some small modifications to the ol' 305. (yeah I know:doh) I know that some people replace the 305 injectors with ones out of a 80's truck (350). Is there any difference between these throttle bodies other than injector size? Because I work for a guy who's brother owns a salvage yard and I can get some good deals. The 305 will hope to have as target hp between 300 & 350.

Tyler
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Old Jul 24, 2003 | 04:44 PM
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AJ_92RS's Avatar
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
They're the same.
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Old Jul 24, 2003 | 04:45 PM
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tyty49's Avatar
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From: Willmar, MN
Car: 91 Maro & 97 Ram & 05 Roadstar
Engine: LS1
Transmission: T56
Axle/Gears: 2.73
Thanks AJ thats what I needed to know.
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Old Jul 24, 2003 | 04:52 PM
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From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
Just out of curiosity, what's your planned mods that you expect to achieve 300-350 horsepower with that 305?
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Old Jul 24, 2003 | 05:00 PM
  #5  
tyty49's Avatar
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From: Willmar, MN
Car: 91 Maro & 97 Ram & 05 Roadstar
Engine: LS1
Transmission: T56
Axle/Gears: 2.73
Well I know that 350 is a little high, but at least 300. Check this out https://www.thirdgen.org/techbb2/sho...hreadid=192792
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