[cowpig]

I don't think you can assume he shoves like this with complete air, and there aren't any draws out. So if you're ahead, it's because he's shoving out of retardation with 55 or something. I think a 9 or K is much more likely.

If the board was a little wetter, I'd call.

Also, I don't like your super-small lead. I think you should either bet ~pot (so that he plays straight-forward and calls with A high/smaller pairs), or check/call (so that he fires with air). Betting smallish makes it too easy for him to get creative, and your hand is not one you want to be making tough decisions with.