Jippe

Please excuse my forwardness but by some of your questions it appears that some of your mechanic skills are lacking. Here are some questions and basics

What exactly are you grinding with the dremel?

Ring gap is measured with the ring removed from the piston and placed in the cylinder at the top then the bottom of the stroke in the same orientation as the ring would be on the piston and with a feeler gage measure the gap in the ring end.

If you go with oversize pistons the cylinderes must be bored to fit the pistons with the proper clearance between piston and cylindere wall. This is very critical and boring and honing must be done by a knowledgable machinest to get the proper clearance.

The sharp edges on the ports are normal per the factory but some rounding is ok if properly done with a dingle berry hone.

Power reeds can be obtained from Boysen, just google them.