The COMP Cams Thumpr NSR 226/246 hydraulic roller cam for Ford 4.6 3V offers a strong idle and excellent midrange power with gains above 4500 RPM. It is compatible with stock valve springs, converters and gearing in many cases but requires a cam phaser upgrade and custom tuning. Expect a street-friendly character with improved throttle response and usable power through the midrange.
COMP Cams Camshaft Set F4.6 3V Mod. Th2