I had the FST 366 kit, if I were to do it again I would only bore it like .20 thousands over, almost non of your power comes from the extra 15 CCs you'll get, the extra power comes from increased compression, a better cam and springs, and aftermarket pipe and filter. Def go with a JE 10.75 compression piston, get a web cam with Kibble white valve springs and you'll be set