[Shillx]

I would either fold to the flop check/raise or look him up. If he has an ace, you don't have the required equity to call and look at a turn. Since you are laying odds to see a turn, you might as well call it down on the hopes that he is bluffing or semibluff or that you improve.

Now having said that, I don't know what I'd do here. He seems like the type that might be well versed in wa/wb and those are the ones that you should look up here. I would say that folding here is probably the best play and can't be too far from correct if it isn't.

Brad