I agree w/ Stuart, if any engine you'll be using on the street uses more fuel than a good pump can pull out of a stock pickup, you better have a real bundle of dough to fill up every couple miles .... I know a
guy with a built 427 in a 55 with a stock tank and pickup tube and stock line right to the pump, never heard of him having starving problems, and he keeps that 750cfm edelbrock howling sometimes .... in the real world, your flow is only restricted by how much the pump can move
Bill