No fuel pressure after 20 mins driving
Hi guys, this has been driving me crazy for months. After 20 mins. Driving I have no fuel pressure. Installed 3 carb manifold with 97s. Installed a carter elec fuel pump in the rear at the tank with filter at the suction side. Preset the fuel pressure at 2 1/2 pounds. Runs great for 20 mins then fuel pressure starts dropping to 0. Installed a return fuel line to fuel tank from fuel block.no better.
Checked carb temp when pressures sure is 0 and it is only 97 degrees. Engine temp 160 degrees. This is the second carter pump. Tried it with the fuel cap off .still drops to 0. Any one have any ideas. Thanks..
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