81 wpm in TypeRacer now. Made a new switch the other day which was to replace my right shift with the backspace key, which I'm quite liking. For whatever reason I've always used the left shift exclusively, and caps lock has been control since my days programming Sun workstations, so that wasn't an option for backspace. But right shift is nearly as easy to hit as CapsLock and doesn't get in the way of my normal flow. I'm pretty much totally remapped to using it now, though my accuracy isn't quite 100% in hitting it precisely.
90 seems very much within reach, just a matter of continuing to push my pace and get rid of remaining typos!