Carbureted Adjustable Regulator, Billet 2-Port AN-6. SS adjustable carbureted regulator. Adjustable from 5-12 PSI. Specifically designed for carbureted street or racing engines on gasoline, the SS-Series adjustable regulator offers higher flow, quicker response and less pressure creep than competing two-port designs. Popular in circle track applications up to and including NASCAR? Level horsepower and as […]