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Old 03-29-2017, 03:38 PM   #5
geezer#99
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Join Date: Aug 2009
Location: Bowser
Posts: 13,530
Re: Mechanical Fuel Pump Size??

I used one like this.
https://www.summitracing.com/int/par...2518/overview/

Ran a stock pump with it, never ran out of fuel even at full warp (120 mph) and 1.5 psi pressure with a dual quad (2 carter afb's).

IIRC stock pumps put out 30 to 40 gph.

Back in the day the pontiac superduty 421's with two afb's used a stock 60 gph pump rated at 9 psi with no regulator. THey ran about 1.5 psi at the end of the quarter and never ran out of fuel. No reg needed as a little flooding at idle was ok. Only idled for short periods anyway.
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