Comp Cams Camshaft / Lifters - Magnum - Mechanical Flat Tappet - Lift 0.555 / 0.555 in - Duration 306 / 306 - 110 LSA - 3000 / 7000 RPM - Small Block Chevy - Kit-CL12-225-4--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO