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The COMP Cams Thumpr camshaft FC 283Th R7 delivers an aggressive, hard-hitting exhaust note at idle along with a broad torque curve and notable horsepower gains for muscle cars and street rods. These grinds typically require an aftermarket torque converter and lower gear ratio to keep the engine in its powerband, and reduced idle vacuum may necessitate a vacuum canister, pump or hydroboost for power brakes.
COMP Cams Camshaft FC 283Th R7 Thumper R
