Turn semi-bluff shove

[Djeorge]

PokerRoom No-Limit Hold'em, $2 BB (5 handed) internettexasholdem.com

BB ($177.35)
Hero ($113.70)
MP ($162.90)
Button ($102.70)
SB ($43.50)

Preflop: Hero is UTG with J[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to $3.5</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">BB raises to $6</font>, Hero calls $2.50.

Flop: ($12.50) 7[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $10</font>, <font color="#CC3333">Hero raises to $30</font>, BB calls $20.

Turn: ($72.50) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $77.7 (All-In)...</font>

Villain took a while to call the flop bet and the turn check was fairly quick if that means anything. Comments on prelfop and flop are welcome too.