[fxbill]

I think that cam might be a bad choice for a street car. With 290 degrees of duration and a .552 lift it's not going to produce much vacuum at idle and power brakes will be sluggish..if at all present.
What you need to do as far as flycutting your pistons is entirely up to what other components you have in your engine...heads, valve arrangement, deck height, cam timing....all affect valve to piston clearance. Until you figure out everything else you'll have you won't know...