i have a 358 engine, 650 carb, 110 octane race gas, 11.3:1 compression, have had carb rebuilt 3 times by 3 different builders with same results...hard to start, fuel starts pouring out vent, loads up each lap in race and smells of raw fuel, i changed fuel pump,even borrowed a known good carb and got same results...someone suggested to use a fuel pressure regulator, what kind of pressure should i be looking for? currecnt carb is a Quickfuel Technologies SS650 circle track carb with 74 and 75 jets, and high flow 6.5 power valves
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