[blykins]

That's not really a large cam. The lift isn't much at all....but of course if your pistons don't have enough piston/valve clearance, it doesn't matter how much lift you have. Did you check piston/valve clearance when you installed?

One thing that you haven't mentioned is whether or not the cam is a roller or flat tappet cam.

If it's a roller, that will eliminate the idea of the cam going flat.

If it's a flat tappet, I would put a dial indicator on a lobe and see if you still have the lift that you should have.