top pair, overcard + flushdraw OOP turnplan

[Marnixvdb]

2/4 NL normal game conditions, i doubled through winning 2 big pots with strong hands. Opponent was sitting with big stack already when I came on the table, haven't noticed anything in particular from him.

I didnt 3bet his flopminraise because given the stack depth, I think it would fold most worse hands. I interpretet his raise as either a set, an overpair and a small % of the time a strong draw. Flopminraises in this game generally mean strength. Now what's my turn/riverplan?

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) pokerhand.org hand converter

Button ($981.80)
SB ($814.10)
BB ($436.10)
UTG ($102)
MP ($400)
Hero ($882.90)

Preflop: Hero is CO with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $2.
UTG calls $4, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $18</font>, Button calls $18, <font color="#666666">2 folds</font>, UTG folds.

Flop: ($46) 4[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $35</font>, <font color="#CC3333">Button raises to $70</font>, Hero calls $35.

Turn: ($186) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $100</font>