Comp Cams Camshaft - Nitrous HP - Hydraulic Roller - Lift 0.566 / 0.575 in - Duration 298 / 310 - 113 LSA - 2400 / 6500 RPM - Big Block Chevy - Each-11-414-8--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO