what carb to get?

i would like to upgrade my stock carb(01 400 ex) and would like the new carb that you dont have to jet.(cant remember the name)
does anyone know or have any experience with these carbs.
how much/from where/how do they work...any help..thanx

[Honda Guy]

I think the carb your talking about that you dont jet is the EDELBROCK I have been told the reason you dont jet is its because you adjust it. Also if you have a STOCK 400EX I dont think you need a new carb. just my $.02

upgrading top end..yup thats the name..thanx