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Old 04-27-2009, 07:50 PM   #1
njk53
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Default Fuel Pressure

How many pounds of fuel pressure should you be running with a Quadrajet carburetor?
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Nelson Kowal
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Old 04-28-2009, 07:24 PM   #2
njk53
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Default Re: Fuel Pressure

Al:

From a performance standpoint what would you guess you gained in ET and speed going from 6 1/2 psi to 8 1/2? How much did you lower the float level? We have a decent fuel system Holley Pump w/ large fuel lines. Carb was done by Parson & Meyers guy. We run a BB Chevrolet stocker. Thanks for the response.
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Old 04-29-2009, 06:37 AM   #3
RHINO
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Default Re: Fuel Pressure

what i did is bring the fuel pressure up until it was about to come out of the vent tube, have someone look at the fuel pressure gauge at that point. i lowered the pressure one pound from that point. remember the gauge is just that, and not always accurate. rhino reinhart
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Old 04-29-2009, 08:43 AM   #4
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Default Re: Fuel Pressure

Correction, back off 1 1/2 lbs. Gas started coming up the vent tube at 10 1/2 lbs on my gauge i set it at 9 lbs.
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