The COMP Cams Thumpr series nitrided cam delivers an aggressive, hard-hitting idle and a broad torque curve tailored for muscle cars and street rods. These grinds open the intake early and extend exhaust duration for race-style overlap, and they typically reduce vacuum at idle—often requiring an aftermarket torque converter and lower rear gears as well as vacuum assist for power brakes.
COMP Cams Nitrided Camshaft CB 279T H7