Stars 200NL AKo with a K on board.

[Claunchy]

Those are normalish TAG stats for FR right? It looks like he might be trying to induce a shove from you with a big hand. I think you can flat here and see what he does on the river.

You'll probably get better responses in the Full Ring forum FWIW.

Oh, and I like a flop bet of around 35, since the pot is reraised, and villain is unlikely to stack off light.