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What size injectors do I use?

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Old Oct 24, 2007 | 01:09 PM
  #1  
Iroc'n 87's Avatar
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What size injectors do I use?

I am swapping out a 305 tpi for a 360 hp 350 tpi I need to know what size injector I should use. Also the swap is from a 1987 Iroc camaro vin code F.
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Old Oct 24, 2007 | 01:51 PM
  #2  
DZcode's Avatar
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From: Virginia
Car: 1969 Z28
Engine: 406 TPI
Transmission: Tremec TKO 600
Axle/Gears: 3.31
Re: What size injectors do I use?

Check an internet fuel injector calculator. If you really expect 360hp at the crank, FI calculators call for 28lb injectors. Stock 350's came with 24lb.

I'm using Ford 30# in my 406.
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Old Oct 24, 2007 | 07:39 PM
  #3  
MdFormula350's Avatar
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From: Maryland; USA
Re: What size injectors do I use?

stock 305 tpi's had 19's
stock 350 tpi's came with 22's

I just put in 24s, I would think you would need close to 28s for that much hp at least around 43 psi fuel pressure.

Last edited by MdFormula350; Oct 24, 2007 at 07:43 PM.
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Old Nov 5, 2007 | 09:43 PM
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joeblue83's Avatar
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From: Southern Wisconsin
Car: 1988 Camaro
Engine: 383 Stroker
Transmission: Probuilt 700 R4
Axle/Gears: 3.73
Re: What size injectors do I use?

Throw in some 30 pound injectors and call it good!
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