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Injector constant for ANPK 305tpi

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Old Feb 16, 2013 | 06:39 PM
  #1  
88formula305tpi's Avatar
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From: Niagara Falls
Car: 1988 Firebird Formula WS6
Engine: 305 tpi lb9
Transmission: 5 speed
Axle/Gears: 3.45
Injector constant for ANPK 305tpi

I have been looking into getting another set of injectors for my car but not sure which to go with and no longer have the original injectors. The reason I am posting this here is because when I look at the injector constant in my prom it says 20.82. I currently have 19lb bosch yellow top injectors gen 2 i believe. the car sat for awhile and runs like crap and i think its cuz the injectors are varnished so im going to get some new ones from southbay. I am wondering if I should get a 22 lb gen 3 bosch or stick with the 19lb ones. I will have an afpr also so that should help tune it too.

Any opinions? I dont want to be running too rich or kill the decent mileage i get now. I do have some upgrades listed in my signature. What would be the smarter choice?
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Old Feb 16, 2013 | 08:29 PM
  #2  
85Z28NOS's Avatar
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From: Texas
Car: 85 Camaro
Engine: 454 RamJet
Transmission: LT1/T56
Axle/Gears: 8.8w/4.10
Re: Injector constant for ANPK 305tpi

You could run either. Injecters are sized per HP demand. If your looking for the drop in with minimal tuning then go with the 19lb
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Old Feb 16, 2013 | 09:57 PM
  #3  
88formula305tpi's Avatar
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Joined: Apr 2007
Posts: 175
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From: Niagara Falls
Car: 1988 Firebird Formula WS6
Engine: 305 tpi lb9
Transmission: 5 speed
Axle/Gears: 3.45
Re: Injector constant for ANPK 305tpi

So if i put in the 19lb injectors should i change my constant to 19 instead of 20.82? im not sure what horsepower i have. I think im going to get the 22s and change the constant to 22.
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