I can address the thought process that Mike came up with when figuring out the cam. Since the Trick Flow heads flow well into .600 range, we wanted to take advantage of the available flow. Also, the springs are rated to the .650-680 lift, so at the .560 lift, it is not really taxing the springs. The other factor is that due to the poor push rod angle, it will never see the full lift anyway, therefore get as must practical lift as possible. There were other lobes available, but went with something that should be more reliable.
