Fuel Pressure
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Fuel Pressure
What is the fuel pressure supposed to be for 1974 F350 1 ton special camper edition? 390 w/650 CFM Holly 4 BBl. Automatic choke. The original owner said it came w/ 750 CFM Holley.
I replaced the fuel pump, but can't keep the float level adjusted. Float valve is good. I either get too much fuel, or none at all. I suspect the new fuel pump is putting out too much pressure.
Where can I get an inline fuel pressure gauge? Whats a reasonable price?
I replaced the fuel pump, but can't keep the float level adjusted. Float valve is good. I either get too much fuel, or none at all. I suspect the new fuel pump is putting out too much pressure.
Where can I get an inline fuel pressure gauge? Whats a reasonable price?
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Joined: Apr 2012
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Don't remember, Probably pretty small increments. Had this problem on another vehicle a long time ago. The pump was putting out too much pressure.
I really need to know what the pressure should be. I am not going to dick around w/the float adjustment any more until I know what the pressures should be, and what the pressure the pump is actually delivering is.
I really need to know what the pressure should be. I am not going to dick around w/the float adjustment any more until I know what the pressures should be, and what the pressure the pump is actually delivering is.
Post Fiend
Joined: Mar 2011
Posts: 8,501
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From: Lynchburg, VA
Nice to hear about someone doing it right. I believe the stock pump normally outputs somewhere round 8psi. Any fuel pressure gauge should work. Summit Racing SUM-G3122 - Summit Racing® Analog Mechanical Gauges - Overview - SummitRacing.com
Autozone, Advance, Napa, or online.
Autozone, Advance, Napa, or online.
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