hey guys im a new guy here just joined, i got a 03 kfx 400 im set up for fllat track. the suspension is complete i got houser a-arms, swing arm and steering stem, elka shocks, dura blue axle, sway bar. now im moving into the engine, i bought a 455 ice cube cylinder, stage 2 hot cams, kibuite valves, yoshimura exhaust, dynatech cdi, and a k&n filter. now onto the questions..... im looking to get a 5mm stroke crank for it along with porting the head and a new bigger carb, any suggestions on a carb for me to get? also is there anything i should do with the transmission other than upgrading the clutch? and what kind of clutch do you guys recromend? anything else i should upgrade? and the last thing, is there any1 on here that has done a build similiar to this and how do they perform? once i get the crank the specs say it will produce 490cc!