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Cam choice is actually up to the customer, but the most common cam is the Xtreme Energy XE268H (or equivalent) flat-tappet from Comp Cams. Milder cams can be used on towing applications, and wilder cams will offer more peak power at the expense of low-speed torque. The XE268H offered a 0.515/0.520 lift split, a 224/230 duration split (measured at 0.050), and a 110-degree lobe-separation angle. The duration specs offered good idle quality, and throttle response would be excellent on the street.