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The COMP Cams Thumpr cam FS 279T delivers the series’ aggressive, race‑style idle while adding broad torque and horsepower gains for muscle cars and street rods. These grinds create early intake opening and extended exhaust duration for that distinctive sound and powerband. They require an aftermarket torque converter and lower rear gear ratio to keep the drivetrain in the powerband, and reduced vacuum at idle may necessitate a vacuum canister, pump or hydroboost for power‑brake systems.
COMP Cams Camshaft FS 279T H-107 T Thumper
