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4 Since APE has the tool, Willis measured actual lobe lift and duration of our custom-grind Comp Cams camshaft. It was within a couple of thousandths lift and within one degree on both the intake and exhaust lobes. The computer attached to the machine will store the results so we can compare this cam to the other one later in the series. The specs of this camshaft are 0.580/0.585-inch lift, 236/242-degrees duration at 0.050-inch, and a 107-degree lobe separation.