I would bet the turn harder. The 6 takes away some of the combos he was worried about (666) and if you bet $7.5-8 on turn, and he might not believe that you have a hand like T's full betting so hard.

River I would just jam. Doubt he gets to river with that many FD's, other than Txcc. But you gotta size the turn better, to not leave more than a pot size bet left on the river.