I have a blown injected alcohol bbc that I run in a Super Pro class at our local track. I have a roots blower and a simple cam driven pump with an Enderle barrel valve with a provision for a bypass circuit. I believe that I can pick up a little mph and et by adding a Hi Speed Bypass to my system. What I understand is that at a point in the run say 1000' the pump pressure drops to say 80 psi, a check valve opens allowing fuel to bleed off through say a .080 jet back to the pump or tank. This lets the motor lean out for that last 320 '. If my reasoning is correct how would you guys suggest I build this bypass? Thanks in advance as always your input is appreciated. racer jim