400ex carb

[250xcheetah]

how much of a difference would a 400ex carb make or would it make any difference at all on my 250x?

It has a .060 12:1 compression piston
TC exhaust
uni air filter with the air box off

-Derek

[250xcheetah]

ttt

[2muchquad]

i m sure it will be a noticeable improvment once you rejet it.It helps out the 300ex.Your intake manifold is a tad smaller than the 300ex one but a 400ex carb will fit,i have did it in the past:)