[Scotty_12]

Its a pretty weak bet, and I would think most winning regs are repopping AA/KK here which would check the flop, do you think he wold be leading AK when he fills? What range would he put you on? JJ+?

I think you can call turn getting over 3-1 and fold to big river agresson, he might just be trying to exploit your flop check and take the t400 for a good price. Checking the flop is a good idea because it gets him to make this play with hands you are ahead of, otherwise you fold the hands with 2 outs and pay the hands that hit their 3/6 outs.