38, wasn't even wound out yet though. It was when I had a crapola antenna wire, with a few bare sections, and short length that made the car glitch like mad. I've since replaced the wire, and think I could comfortably top 42 or so, maybe more if I had the room to wind it out all the way.

EDIT: Oh yeah, that's when I was still screwing with 32p gears though, so it was 15/66 with the center not-so-slippery slipper.