Comp Cams Camshaft / Lifters / Springs / Timing Set - Xtreme Energy - Hydraulic Flat Tappet - Lift 0.477 / 0.484 in - Duration 256 / 268 - 110 LSA - 1000 / 5200 RPM - Small Block Ford - Kit-K31-234-3--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO