big bore jetting

[mytrx450r]

need jetting tips for big bore kit, 05 trx450r, hrc kit, k&n, ignition and rev box, hmf full pipe, going to 480cc

[Chango]

I have a 50 slow jet and a 195 main @ sea level..I may even need the 200 main

[mytrx450r]

on what? and at what displacement?:confused:

[Chango]

Just went to a 52 slow ..Athena 480 kit w/ hrc and k&n w/FMF power bomb factory 4