Missed my huge draw and I'm heads-up at the river

[SoCalPat]

What do you do here? No reads.

Paradise Poker 1/2 Hold'em (9 handed) converter

Preflop: Hero is BB with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="666666">2 folds</font>, MP1 calls, <font color="666666">2 folds</font>, CO calls, <font color="666666">1 fold</font>, SB completes, <font color="CC3333">Hero raises</font>, MP1 calls, CO calls, SB calls.

Flop: (8 SB) T[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="blue">(4 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, MP1 folds, CO calls, SB folds.

Turn: (5 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, CO calls.

River: (7 BB) 6[img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero ....