Our polished high flow, GM Fuel Rail Kit is designed to bolt to all GM, LS1 intakes, as found on Chevrolet Corvette and Camaro, as well as Pontiac Firebird/Trans Am. For use with upgraded fuel systems including A1000 and larger fuel pumps along with remote mount, return style regulators like our EFI Bypass Regulator P/N 13101. Perfect for popular LS1 Engine swaps into early Muscle Cars and Street Rods, making installation of AN Lines, along with external fuel pumps and regulators a snap!