Jet size for my mods?

I have a wb slip-on e-series pipe, wb rev-kit, 11:1 comp piston, K&N airfilter, and a pc racing carb venting. I dont know what main jet size i should use. If you have these mods or know what is best, please let me know. Its a 400 EX
Foxhondaex "RIDE RED"

[400exJOE]

155-170. My guess is a 160. You're going to have to experiment though.

[stevengates45]

First off, what kindof bike do you have?