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Old 04-02-2003, 09:00 PM
cwmcobra's Avatar
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Default Fuel Pressure Stability
Any experiences with fuel pressure fluctuation with operating temperature? I'm using an Aeromotive fuel system on my Ford 514 V8 with a Holley Street Avenger 870 CFM carb. When I start the engine cold and adjust the fuel pressure regulator to 7 PSI, per Holley spec. as the engine warms up the pressure drops to below 3 PSI. Doesn't seem to be impacted by engine speed. Same readings at idle or 2000-3000 RPM. Is this normal? Should I suspect a bad regulator? Or could it be a faulty engine builder (yours truly)?

Thanks!

Chuck
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