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The COMP Cams Classic Thumpr 226/241 hydraulic flat cam for Chevrolet 348–409 offers strong low-end and street-friendly power with a choppy/thumping idle. A stock converter can work, though the profile benefits from higher stall speeds and stronger gearing. It’s tuned for performance street use while retaining usable drivability with appropriate supporting components.
COMP Cams Camshaft 348/409 279T H-107 T
