Bluff this River?

[allrightfine]

Villian is 19/11/3.4 over 2,011 hands

What is my river play here?

Full Tilt No-Limit Hold'em, $1 BB (5 handed) Full Tilt Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($153.35)
Hero ($108.45)
MP ($114.90)
Button ($100)
SB ($77.55)

Preflop: Hero is UTG with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Hero raises to $3.5</font>, MP calls $3.50, <font color="#666666">3 folds</font>.

Flop: ($8.50) T[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, MP calls $6.

Turn: ($20.50) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $17</font>, MP calls $17.

River: ($54.50) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero????