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The COMP Cams XR280 camshaft is intended for small-block Chevy applications; it will not fit 1955–57 models that require an oiling groove in the rear journal. The cam is optimized for use with melanized or nitrided distributor gears and is not compatible with untreated cast or steel gears. Best used in street machines with 2800+ stall, 10:1+ compression and 3.73–3.90 rear gears.
COMP Cams Camshaft CS XR280 R-10
