Comp Cams Camshaft - Nitrous HP - Hydraulic Flat Tappet - Lift 0.477 / 0.490 in - Duration 268 / 286 - 113 LSA - 2000 / 6200 RPM - Small Block Chevy - Each-12-560-4--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO