When you are in position with AK and the pot has not been raised I believe you should play them like aces preflop and flop then if you have a caller to the turn you should at least be able to see a free river if you are sitting on air. This means 4/5 betting preflop if the pot has not already been raised. If it has already been raised, well then all those variables come into play i.e. is opp. lag tag etc.. I would say just play them carefully in this situation you can always wait for something better. If you are out of position play them like aces always c-bet but evaluate and play carefully if you have a caller to the turn. So you check the turn and he makes a large bet either he has you beat or hes bluffing probably 70/30 in a vacuum. So fold and wait for something better or go all in