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Chevrolet, GMC - Possible vapor lock problem

The 1967 - 1972 Chevrolet & GMC Pickups Message Board - The 1947 - Present Chevrolet & GMC Truck Message Board Network - 67-72chevytrucks.com
I have a 71 c10, 350 gm crate and motor with edelbrock 1406 carb. I run a Quick fuel electric pump with pressure regulator set at 5 1/2 psi. I have been experiencing pressure drops in the afternoons when its hot while in traffic. Once i start moving pressure goes back to normal. Would a return style revulator help with problem? Would running 93 octane help?
Date: Oct 12, 2017    Labels: Chevrolet GMC


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