Product Description Specifications Thumpr 226/241 Hydraulic Flat Cam for Ford 351C, 351M-400M. High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Camshafts Core: N LTL: N MPN: 32-600-5 Proposition 65: Y Special Order: Y Clearance Item: N