your play here (in my opinion) is rather simple. you've already stated you have a fast reputation so i'm betting out at this pot, you're hoping he is at least sentient and has noticed you taking down many pots without a showdown. If he has, he is possibly "trapping" with his AK or KQ. I'd make a pot size or slightly greater raise. The turn would have to be AKQJ to scare me away from this pot and if it comes lower, i'm pushing the turn.