A lot of people will give you poor advice about engine parts. Bamg for your buck you cant beat turbo and supercharging. They are about 5 grand, but it is the most bang you can get for your buch. A stock Deuce had about 75 Hp (common of Harley). Either one of those items could put you to 120 or so, without a big bore kit. Close to 150 with a big bore. Simple stuff would be a 2 into 1 exhause, a new air filter, and a cam. You have to put a power commander on to do those.