Comp Cams Camshaft / Lifters / Springs / Timing Set - Nostalgia Plus - Hydraulic Flat Tappet - Lift 0.530 in / 0.524 in - Duration 276 / 283 - 108 LSA - 1800 / 6200 RPM - Big Block Chevy - Kit-K11-670-4--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO