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

LO3 + LT1 = which injectors?

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Old Apr 13, 2013 | 09:33 PM
  #1  
gearheadotaku's Avatar
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From: Michigan
Car: '91 Firebird
Engine: 305 TBI w/LT1 cam
Transmission: T5 swapped in
Axle/Gears: 9 bolt 3.27 w/discs
LO3 + LT1 = which injectors?

Planning a LT1 cam swap for my LO3. Should I add the 350 injectors or will the 305's keep up? Using the stock heads and the slightly larger 350 ex. manifolds and y pipe, 3.23 gears and 5-speed. Not trying to make huge power, 200hp at the crank is plenty provided I don't lose torque.

Would I be better off with a B-body cam over a Camaro cam?
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Old Apr 15, 2013 | 06:44 PM
  #2  
UnderCover89TBI's Avatar
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From: Manteca,California. Nor Cal.
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Re: LO3 + LT1 = which injectors?

Originally Posted by gearheadotaku
Planning a LT1 cam swap for my LO3. Should I add the 350 injectors or will the 305's keep up? Using the stock heads and the slightly larger 350 ex. manifolds and y pipe, 3.23 gears and 5-speed. Not trying to make huge power, 200hp at the crank is plenty provided I don't lose torque.

Would I be better off with a B-body cam over a Camaro cam?
don't have to get bigger injectors you can increase the PSI of your injectors. upgrade to headers forget about manifolds. Headers anda full exhaust will give you more gain than the cam will.
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