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Need bigger fuel lines?

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Old May 7, 2008 | 11:55 AM
  #1  
joeblue83's Avatar
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From: Southern Wisconsin
Car: 1988 Camaro
Engine: 383 Stroker
Transmission: Probuilt 700 R4
Axle/Gears: 3.73
Need bigger fuel lines?

At what point with horsepower and torque would you need to replace the stock fuel lines with bigger ones. I am wondering if I should look into that. Anyone with any advice
I do have a holley 255lph fuel pump.
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Old May 7, 2008 | 12:02 PM
  #2  
Big Dave's Avatar
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From: Hebron, KY
Car: 1992 RS Heritage
Engine: 305 TPI
Transmission: TCI 700r4
Re: Need bigger fuel lines?

I would upgrade my fuel system if I were running that combo.
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Old May 7, 2008 | 12:16 PM
  #3  
ZONES89RS's Avatar
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: Need bigger fuel lines?

Good questio, i am wondering if my stock lines will gove my new stroker the fuel it needs, i did order a holley back fuel pump to get the hextra pressure i might need for nitrous but i think it might be fine.
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Old May 7, 2008 | 03:17 PM
  #4  
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From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: Need bigger fuel lines?

Just watch your fuel pressure at WOT. I'll bet it holds up fine.
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Old May 7, 2008 | 05:55 PM
  #5  
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: Need bigger fuel lines?

I can maintain a fuel pressure of 48 pounds right now
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Old May 8, 2008 | 04:51 AM
  #6  
Viprklr's Avatar
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From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: Need bigger fuel lines?

If you're tuned and your not running lean in the high load/high rpm range, then you'll be fine.
I "believe" the magic number though is somewhere around 500hp. This information is on this site somewhere. I did a search on it about 6 months ago and found it.
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Old May 8, 2008 | 10:01 PM
  #7  
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From: Port Charlotte, FL
Car: 1986 WS6 TransAm
Engine: THREEFIDDY!
Transmission: T5
Axle/Gears: 3.73
Re: Need bigger fuel lines?

l
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