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With a custom Contreras cam measuring .810-inch lift, the valvetrain must be made up of top quality parts. The valves are Ferrea and measure 2.250 inches (intake) and 1.600 inches (exhaust). Beefy Manton pushrods are moved by Isky solid-roller lifters, while the PSI valvesprings deliver 380/1,010 pounds of closed/open load. The cam features 268 degrees duration at .050 inch, and a lobe separation angle of 112 degrees.