Using the master lobe profile catalog thats available online from comp cams is very helpful using the dur @ .050 and .200 figures you can get an idea how quick the lobe ramp is, and the tappet lift at t.d.c. figures at either 106 or 110 Lobe separation angles is helpful in estimating available piston to valve clearance. Good stuff here if you want to spend some time researching lobe profiles and moving separation angles that would benefit your application.