Comp Cams Camshaft - Tight Lash / Drag Race - Mechanical Flat Tappet - Lift 0.570 / 0.590 in - Duration 296 / 304 - 106 LSA - 4500 / 7500 RPM - Small Block Chevy - Each-12-517-5--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO