RDI and KT considered several cam combinations before settling on a mild grind that brings the engine's power and torque curves in line with Chevrolet's. Ken Troutman, the owner of KT Engine Development, says that although many people will just compare the peak numbers, it was important to make sure the shape of the curves matched up well if the Ford and Chevrolet engines were going to be competitive on the racetrack. For maintenance-free longevity, a hydraulic roller cam was chosen. The grind specs call for 0.512 lift on both the intake and exhaust valves with 1.6-ratio rockers. Duration is 224 degrees on intake and 230 on exhaust at 0.05 lift, and the lobe separation angle is 110 degrees. Altogether, it's something an engine should be able to live with for quite some time.