I'm planning to use a surge tank in conjunction with my mechanical injection. I'm using a small tank up front fed through a Holley float bowl. I've got 150 needle and seat in the bowl which is fed by a quality elec pump from the rear tank. My question is does there need to be a pressure regulator between the pump and the fuel bowl? In all the diagrams I've seen there is never a regulator shown, do I need one??