Somewhat ironically I stopped in at Autozone to get bulbs for my car, only to discover two older gents on kitted out step thrus out for a cruise. Apparently, they have been working on peds since they were in highschool and took one look at mine and say "Oh... thats had work done! You have a hi compression head on that." I guess I'm curious about what exactly this means in terms of performance, and if this changes anything I should be doing in terms of fuel mix, jetting, etc. Seems to run really strong, I was getting a consistent 40+ most of yesterday, but just want to be sure I'm not burning a hole in the piston or anything. Rest of the bike appears stock (incl. carb & exhaust).