There better be some. More importantly, you should be measuring hat side play, and the oil clearance of the bearing. Side play isn't real critical but not enough is a problem.
thxs guys. Back to square one. I did my cam break in on my test stand and now have a rattlin noise and I not sure what it is. i reviewed the archive post. tried some of those things(splash guards. checked the rod bolts, crank bolts) nuthin.