[Doc]

preflop is ok by both players IMO - he may well have had a read on you too!

making a cb on the flop makes perfect sense, but a smaller bet would probably do - 2500 or 3K

The turn is horrible. I'm not crazy about his flop call, and I hope for his sake he had a VERY good read on you. His bet is daft - you have to call - even with your hand or an underpair to the board - with such massive odds. What he's also doing is allowing you escape on the river if you want to. Your move has to be called by him given the pot odds. He'd have been far better off moving in on the flop and giving you a much harder decision.

My preferred move if you're going to lead at the flop almost regardless would be to move all-in pre-flop. You've a big hand and there are 1300 chips worth winning. You'll get to see all 5 cards and it'll be very hard for any of the early hands to call you unless they've limped in with AA or KK.
A better play by him (IMO) if he reads you for AK would be to lead that flop, or even check-raise you all-in - particularly if he is large stacked compared to you.