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The cam Hafliger chose was Comp's Extreme Hi-Lift XE295HL hydraulic flat-tappet grind. The specs are 251/257 at 0.050 inch and 0.564 valve lift on a 110-degree lobe-separation angle. Comp recommends installing this cam 4 degrees advanced. Using a nonadjustable Engine Pro double roller timing set, the cam ended up going in 5 degrees advanced.