Installing HC pistons from FBF

[mahoneygod]

Putting them in tonight. I know i have to size the rings but is there anything else I need to do to either the piston or cylinder? When together I know I need to check the squish with some modeling clay. If it is off how do I adjust?

[bikepilot]

Piston to cylinder clearance is critical - make sure it is correct and get this right before you go and set ring gap (note if you have a plated cylinder and the piston-cylinder gap is too tight you are sol).  As for how to adjust valve-to-piston clearance, there are lots of ways   - thicker gaskets, mill the piston, change the cam or cam timing etc.