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Ever wonder what those camshaft specification numbers really mean and how they affect engine performance? This episode of Engine Masters presented by AMSOIL is here to help, as David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. Next, we test a low-rpm cam and a high-rpm cam in the same engine to demonstrate the power differences. Engine Masters is supported by Mr. Gasket and Earl's Vapor Guard hose.