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The COMP Cams Mutha' Thumpr 235/249 hydraulic roller cam is aimed at high-performance street/strip builds to strengthen midrange and top-end response. While a stock converter can be used, the cam performs best with a 2,000+ rpm stall and matching gearing; intake and header upgrades will maximize results. Installation produces a rough idle typical of this cam family.
COMP Cams Camshaft Kit CS 291T HR-107 M
