Product Description Specifications Mutha' Thumpr 234/249 Hydraulic Flat Cam for Ford 351C, 351M-400M. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, Gears and headers, rough idle. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Camshafts Core: N LTL: N MPN: 32-601-5 Proposition 65: Y Special Order: Y Clearance Item: N