Engine build coatings cams pistons?

Ok engine in the fummins is getting taken back down,so starting to make up a build sheet,goal for truck is mean street machine and going to see quite a bit of track time 500-600 hp

Question is what are your experiences with bearing coatings

Been thinking h series clevite bearings with calico coatings but nobody has been able to tell me experiences with their coatings iv done coated pistons but not bearings

Pistons been thinking about the standard old Clevite pistons with coated tops and chrome/ceramic ring

As of the moment I have a wimpy little colt cam my thought is going to a 188/220 from Hamilton

Have yet to decide on sticks and turbo set up yet

Please let me know your experience with these coatings different pistons and cams