ME Top two w flush turn?

[golker]

Main Event, blinds are 300/600/75 i have 62k i raise to 1700 from utg+1 w AdKc carl olson calls from mid and button calls carl has over 100k bu has around 50k flop comes Ah7h8s i bet 5k goes call call turn comes kh what lines should i consider and why? i have been pretty active lately and carl has been calling me in pos a bunch lately, im not sure if he is willing to play a big pot light with me or try and take me off of a wideish range that he might veiw me as having.