Seller notes

COMP Cams Thumpr 283THR7 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams. Thumpr. High performance street, Stock converter ok, best w/ 2000+ converter & gears, Choppy/thumping idle. Hydraulic Roller - Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. Three unique cam designs for each application that deliver excellent horsepower gains & broad torque curve; perfect choice for muscle ...

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