hey guys want some advise on how to play this hand.

$2.50/$5 NL...all stacks around 500$
im on cutoff, folded all to me, i have 6c 7c i raise 3BB to $15, button folds, small and big blind call.

flop comes 6s As 7s. i raise $45, SB folds, BB raises to 110$...what would you do from here with 2 pair?..And you dont know how the guy plays.(like tight or loose etc).