Haha that just made me smile because I was just thinking that the best I have done on a test is around 120 but I type a lot faster when I don't have to type something I am reading. :P
Best person I ever saw on a test was an teacher I had when I was in high school. I was only hitting 80s on the tests back then and was way beyond the others in the class and the teacher came over and busted out 285wpm on my test... I was dumbfounded and still to this day have never seen a faster typer in person. Won't ever forget that lesson haha.