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bkplesh

  • Karma: +7/-0
fuel pressure for daul carbs
« on: July 07, 2007, 02:20:49 PM »
what should the fuel pressure be for daul carbs? A starting point. it a 454 with two 850's i think
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crewchief22

  • Karma: +66/-0
Re: fuel pressure for daul carbs
« Reply #1 on: July 07, 2007, 02:32:42 PM »
Holley carburetors run good with between 5-7psi pressure.  Over 8psi can push fuel past the needle and seat.  A lot of pumps (mechanical or electric) will run a little high on pressure requiring a pressure regulator.
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bkplesh

  • Karma: +7/-0
Re: fuel pressure for daul carbs
« Reply #2 on: July 07, 2007, 02:55:38 PM »
thanx, that's what what i thought. just want to be right
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beerjet

  • Karma: +81/-0
Re: fuel pressure for daul carbs
« Reply #3 on: July 07, 2007, 06:12:10 PM »
Mines at 7psi .

-beerjet-
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Quote from: Ralph Brunt on July 09, 2009, 08:36:19 PM
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bkplesh

  • Karma: +7/-0
Re: fuel pressure for daul carbs
« Reply #4 on: July 07, 2007, 07:31:19 PM »
i set it for 6
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Marcsrollin

  • Karma: +33/-0
Re: fuel pressure for daul carbs
« Reply #5 on: July 09, 2007, 11:34:26 AM »
I am runnin dual 750's and mine is set at 7 psi.
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hotrod56cars

  • Karma: +1/-8
Re: fuel pressure for daul carbs
« Reply #6 on: July 09, 2007, 11:41:25 AM »
I'm running a single Holley DP 650 fed by a $39.95 Kragen electric fuel pump with an operating pressure of 4 - 7 psi, no fuel pressure gauge.

I just changed my avitar and felt like I needed to jack a thread.

Thanks.
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FORKEDUP

  • Karma: +4/-0
Re: fuel pressure for daul carbs
« Reply #7 on: July 09, 2007, 01:15:30 PM »
running 7-8psi on mine, dual holleys
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