Comp Cams Camshaft - Xtreme Energy - Hydraulic Roller - Lift 0.510 / 0.540 in - Duration 290 / 307 - 112 LSA - 1800 / 5800 RPM - GM LT-Series 1992-97 - Each-07-306-8--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO