04 yz250f piston

I am planning on putting a high compression piston in my bike this winter. I am told that the best way to go is to put a CP Piston in it. Are there any things i need to worry about?...crank?...overheating?...clearence? As far as my valve clearance goes, i am planning on putting in hot cams if that makes a diffrence.

Thanks in advance,
Grensjos