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The COMP Cams Thumpr camshaft delivers an aggressive, hard-hitting exhaust note and a broad torque curve ideal for muscle cars and street rods. It requires about 9:1 compression, a 2500+ rpm stall converter and supporting intake, gears and headers to reach its powerband. Expect a rough idle and reduced vacuum at idle; vehicles using power brakes may need a vacuum pump, canister or hydroboost.
COMP Cams Camshaft CB 291T HR-107 MT Th
