I never rode a stock one. I did, however, take a 2 minute ride on a kfx700 with a FST 900 stroker kit, cam, dual DMC Alien exhaust, all that good stuff. Probably one of the scariest rides I ever had, because it just feels weird the way an automatic will pull a wheelie higher and higher until you let off, because they don't shift. Hard to explain, but it would take some getting used to. It wasn't as insanely fast as I expected it to be though, with a number as big as 900 I thought i'd have trouble staying on the seat.
Sure, you can still hang out here, just don't spend too much time rubbing it in how much faster it is than a 350