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Old 06-30-2008, 05:23 PM
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Caprimaniac Caprimaniac is offline
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Join Date: Sep 2006
Location: Skjetten, No
Cobra Make, Engine: Unfortunataly ; none
Posts: 333
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My guess is: too tight return lines. I run a Aeromotive regulator and they advice 1/2" return line (corresponds to AN8..) for my application (engine front, tank rear, carb at 3 psi).

Gary have some great suggestions. Should be tried.
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