I'm trying to see if any1 has tried 1 of these carbs.If you have can any1 tell me if you could tell the diff between stock. Do they give the claims of 4-6hp? Ive been told it has no accelerator pump,its gravity fed which gets rid of the bog after a hard landing, utiizes a half round needle so that at high rpms it dosn't enterfere with the flow of fuel,& also no need for altitude jetting due to a varible venturi? ( wow ) I need to hear from some1 that has 1. Thanks,Steve 99 Ex, white bros exh.,k/n filter w/precleaner,jetted,modified air tube,cranckcase breather,renthal bars,ac nerfs,jl blockoff,cut fenders,soon 2 have cam & header port & polish.maybe a quicksilver carb?