I know this question has been ask before but I cant seem to find it . I am looking at a 2009 street glide and I would be interested in upgrading the engine . Can someone please tell me the best way to upgrade the 96" motor and get the most bang for the buck ? I don't want to tear the motor completely apart . I looked in the Harley parts book and it appears the 110 kit actually doesn't increase the hp and torque as much as the 103 . I don't think I want to go with anything but Harley parts if for no other reason than resale when I trade . If anyone can help ,Thanks in advance