hi there i have an my 450r it has a 477 big bore, port and polish, 12.25:1 compression cp piston, stage 3 hot cam, k&n filter, venom full exhaust, bored card to 42mm, the hrc kit was done the only thing remaining is the rev limiter. I am wondering if a venom piston will help with more power or what i should do next. i had KBR do all the work and am very pleased with the guys there. i was thinking of doing a 500 big bore or a stroker on it. i would do both if it would be worth it. my bike dyno'd just under 50hp on KBR's dyno. I AM OPEN TO ANY OTHER SUGGESTIONS!!! i just cant let my brother with his 09 raptor 700 beat me to badly. he has done a full exhaust, programmer, air intake, 12:1 compression, ignition module, and cam and puts a major smack down on me. he beats me by about 10-20 bike lengths both on the face and bowl at little sahara in utah.
well let me know i plan on talking to KBR as well cuz they would be doing the work.

headwork and nitrous

i have been considering nitrous but not sure. the head work is on the to do list but what type of work should i do for the best performance i run in 4000 ft altitude area

i want as much input as possible so i can weigh the options of what to do or do it all i also need to figure out about how much it cost for every thing

thanks for the help