Adjustable from 5-12 PSI. Excellent upgrade from popular, competing two-port designs. Ideal for carburetor and dedicated nitrous applications where higher flow, quicker response and less pressure creep are desired. The Carbureted Adjustable Regulator is designed specifically for carbureted street or racing engines - ideal for their Street / Strip (SS) Fuel Pump and their A2000 Fuel Pump. Handsomely finished with a "Bullet Proof", Type III hard-coat anodized exterior.