what jet should i be running??

[Doak450r]

Yeah i have a 450r and am gettin the Hrc kit and full sparks system put on what size jetting should i be using?

[Jersey450R]

with the HRC lid, probably around 155-170. no lid at all...180-190 depending elevation and temperature outside.

[mikes450r]

i have no lid at an elevation of about 1000 and i run a 185 middle clip