Cam selection

[Hotrod70C10]

The time has come! I've got a set of 350 vortec's from a 99 subarban. I'm picking up an edelbrock performer intake for the vortec's along with a edelbrock 1406 electric choke carb. After talking to my uncle that owned my truck before me, I learned that the bottom end has roughly 40k on it. It's .030 over but he couldn't remember if he put flat tops in it or not. Since there is no blowby or any signs of problems i'm going to go ahead and put the heads intake and carb on this shortblock. I've got my eyes set on two different camshafts from comp cams
the 268H and the 270H. I am pretty sure that i have 3.07 rear gears but will be checking this weekend while i'm serviceing the tranny and rearend along with installing trailing arm and panhard bar bushings. Ok well back to my question what do you guys think of the 268H and 270H?? Thanks in advance!