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injector size question

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Old May 8, 2004 | 06:04 PM
  #1  
Notplayn's Avatar
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From: Wilmington
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injector size question

I have a 89 GTA w a 350. I have a mild upgraded cam, mild upgraded torque converter. I will be installing headers. No head work at this time. Adj fuel pressure reg is installed. Should I go back with 22# or 24# injectors. The computer has not been changed. Thanks
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Old May 8, 2004 | 07:23 PM
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From: Point Marion PA.
Car: 1982 CAMARO;
Engine: 1985 LB9;
Transmission: T-5/
depends on what you want to do with the engine later on. Bigger cam, Better heads, ECT. I would say at Least 24# but give it a minute and some one else will say go with 30# SVO's
or something else.
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Old May 8, 2004 | 07:53 PM
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From: Wilmington
Car: Depends on the day!
Engine: the kind that runs on money
Transmission: One that holds up, I hope
No major changes any time soon..
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Old May 8, 2004 | 07:55 PM
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DJP87Z28's Avatar
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just stay with the 22# injectors.
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Old May 10, 2004 | 03:26 PM
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
I agree on the 22# injectors, you should need lots of mods to get any benefit from the 24's, and especially the 30's.
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Old May 10, 2004 | 04:21 PM
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Notplayn's Avatar
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From: Wilmington
Car: Depends on the day!
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I agree on the 22s- Where can I find them? thanks...
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Old May 10, 2004 | 04:29 PM
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
Probably any local parts shop, or if you're not in a hurry, eBay or Jegs or Summit. Summit or Jegs will probably be the cheapest.
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Old May 10, 2004 | 06:09 PM
  #8  
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From: Wilmington
Car: Depends on the day!
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Transmission: One that holds up, I hope
I spoke with JEGs this morning. They dont carry them. Only 21s or 23s. The svo 23s were a ev6 (something like that) which are smaller than the 24s which were ev1 (something like that).
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Old May 10, 2004 | 08:22 PM
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Car: 1987 Black IROC-Z (SOLD)
Gmpartsdirect for the stock factory 22# ones, not exactlly cheap.
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Old May 11, 2004 | 02:11 AM
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From: Bow, WA
Car: 1989 Firebird Formula 350
Engine: 5.7L TPI
Transmission: 700R4
Axle/Gears: Borg Warner 3.27
Get the Bosch 0280150561 D9B-22lb* set for TPI from www.fiveomotorsport.com for 8/Set: $188. They are the ones with the black body and pink tip. These are the ones I'm likely going to buy.
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