will 158 main be too rich on stocker?

hey i have a white bros and i want to increase the jets a little. i want to be able to switch from stock to white bros without having to re-jet. will a 158 main jet and a 42 pilot be too rich with the stock pipe and just a k&n filter?thanks

[max400EX]

Try a 152 first, I think that should do the trick (elevtion might skew it a little)

[Ex'rMike]

A 152 will be way to rich with the stocker.
142 is all I can get out of a stocker. You can actually go a little bigger, but one does not come with the kit. The next one up is a 146 and it is just a little too much.
Good Luck, I hope this helps!

ExerMike