[JustOne]

With that cam, you may be closer to 600, and will not make peak power until 65-6800. A 104 lobe seperation is going to give you a VERY nasty idle, and may not run under 1500 rpm. Is this a tight lash street roller, or is the ramp rate designed for drag racing?
Depending on your driving habbits you may want to rethink the cam. There is nothing wrong with a solid street roller, but make sure that the profile is not so wild that the car can't be driven on the street.
My cam as is hydraulic with a 242/250 dur ation and 612 lift, but a 112 center lobe to help calm down the idle.

Justin