Still kinda new to the 426 game...it seems like a lot of you guys are constantly adjusting the pilot screw. I re jetted for altitude(5000ft) by changing the main jet as stated in the manual to a 158 main, and 1 1/2 turns out on the screw (stock was 1 3/8 so I barely turned it at all). How can I tell if that's optimum? Will I just feel it in the power, or are there specific symptoms that the engine will have if not properly adjusted (e.g. bogging, stalling etc.). The bike seems to run fine and I haven't fouled the plug since the re-jet, so basically how do I know if I need to mess with thew screw? Thanks Guys, this site rocks.