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The COMP Cams XR273HR street/strip cam is tuned for high-RPM power and favors higher rocker ratios to maximize lift. It’s intended for applications that prioritize top-end performance and requires a programmer for proper engine management. This cam is best for builders seeking aggressive RPM capability for street/strip use where matching valvetrain and tuning are part of the install plan.
COMP Cams Camshaft LS1 XR273HR-12
