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The COMP Cams Big Mutha' Thumpr 243/257 hydraulic roller cam is built for street/strip power, emphasizing strong top-end and midrange performance. It requires about 9.5:1 compression and a 2,800+ rpm converter stall with supporting intake, gears and headers. Expect a very rough idle—this cam is aimed at aggressive, track-ready street builds.
COMP Cams Camshaft Kit CS 299T HR-107 B
