PS $11, an AK hand

[gumpzilla]

I've been paying less than maximal attention, so no read on the villain.

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (6 handed) FTR converter on zerodivide.cx

CO (t3275)
Button (t2835)
SB (t1170)
Hero (t2270)
UTG (t1390)
MP (t2560)

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, CO calls t30, Button calls t30, SB completes, Hero checks.

Flop: (t120) K[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets t75</font>, CO calls t75, Button folds, SB folds.

Turn: (t270) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t140</font>, CO calls t140.

River: (t550) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero bets 250, CO raises to 500, Hero pushes

Thoughts?