42mm fcr carb on a 2001 400ex?

[Kdedecker 400ex]

im looking for some extra power to keep up with my friends 450's. i heard you can put an fcr 42mm carb on a 400ex and you'll get close to the same amount of power. anybody care to elaborate?

[honda400ex2003]

check out the 450 carb install info in the 400ex section stickies. great mod with lots of info there! steve