Comp Cams Camshaft - Thumpr - Hydraulic Flat Tappet - Lift 0.491 / 0.476 in - Duration 279 / 296 - 107 LSA - 2000 / 5800 RPM - Small Block Ford - Each-31-601-5--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO