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The COMP Cams XR271HR-12 is an Xtreme Energy hydraulic roller camshaft (224/232 spec) intended for serious builds. It works well with ported heads and requires substantial valve train upgrades, plus a higher-stall converter and tuner—2200+ stall and a programmer are recommended. This cam delivers an aggressive profile best used in heavily modified engines with supporting hardware.
COMP Cams Camshaft CBVI XR271HR-12
