This high flow regulator has been modified by PRO SYSTEMS to work with our valved vacuum setup on our carburetors.
You simply hook a vacuum hose from the regulator to the special port located on our carburetor. You will now have fuel pressure control to allow you pressures in the 3-7 psi range at idle and 10-11 psi at wide open throttle! This is employed for high powered carbs on gasoline, Ethanol (E85/E98) and alcohol carburetors.
Note: It will not work on carburetors not machined/designed for this setup.
