HOT TO GO on Grand Island is a pimp ass 2 stoke machine shop and engine builder
http://www.htgracing.com/index.php
These guys are awesome and the prices are great
about Wiesco 2 stroke pistons - they are forged race pistons and they must be heated up everytime you use the engine or else they seize. They are great strong pistons for racing however they are not the best for daily/rec machines. I would suggest OEM oversized