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400ex carb
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Posted by: 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

Posted by: 250xcheetah

ttt

Posted by: 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