Hi im Chris from Dallas,Tx... 33 year old drag racer with 25yr+ experience with engines etc... joined the forums because i have decided to build a mini dragbike out of a free cateye that was given to me for my 8yr old son... basically its a near stock yellow cateye that i have opened up the exhaust on and removed the mufflers... i did a complete battery and harness delete... just the bare essentials and am about to stretch the swingarm... if anyone has any solid info on port dimensions (width , height, amount raised etc) that has proven to make big gains it would be greatly appreciated... also plan and high compression, figuring out how to advance the timing... and a methanol conversion...