GSC R2 Billet Camshaft Set 274/274The 7008R2 is a high lift, very aggressive profile, with a short overall duration to keep a lower usable RPM band. The 7008R2 is designed to rev between 4000 8500 RPMs and should be used with a stroked engine or added displacement engine. The peak lift of 12. 0mm intake and exhaust will require upgraded valve springs and a titanium retainer with special attention to seal to retainer clearance. With the lift of this profile, it is suggested to only use