These COMP Cams Xtreme retrofit fuel injection cam and lifter kits are designed to take advantage of the newest developments in camshaft design and to provide maximum performance in late model applications. They are ground on a 113 degree lobe separation using faster-opening and more efficient ramp profiles. COMP Cams Xtreme fuel injection cam and lifter kits include a matched set of COMP Cams High Energy lifters to maximize efficiency. Are you working with fuel injection? Get the most power out of your engine with one of these COMP Cams Xtreme fuel injection cam and lifter kits.