$60; KQ with top pair on bubble

[Chipchucker5]

Never played with villain before and he has seemed pretty tight thus far. I've been really active throughout the tourny just from picking up a lot of good hands, so my image may be on the loose side. What to do here?


PokerStars Tournament, Big Blind is t200 (4 handed) Converter on pregopoker.com

Hero (t3015)
Button (t3120)
SB (t4360)
BB (t3005)

Preflop: Hero is in CO with Q[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
<font color="red">Hero raises to t500</font>, <font color="gray">Button folds</font>, SB calls t400, <font color="gray">BB folds</font>

Flop: (t1200) J[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/club.gif[/img] (2 players)
SB checks, <font color="red">Hero bets t600</font>, <font color="red">SB raises to t1200</font>, <font color="black">Hero?</font>