PS $50 KQ flops TP in limped pot, non-drawy flop; action on the turn?

[Sherman]

4th hand of MTT. What should I do on the turn and why?

Poker Stars, $50 + $5 NL Hold'em Tournament, 10/20 Blinds, 9 Players
LegoPoker Hand History Converter

SB: 2,580
BB: 3,130
UTG: 2,970
UTG+1: 2,940
Hero (UTG+2): 3,050
MP1: 2,930
MP2: 4,140
CO: 3,060
BTN: 2,180

Pre-Flop: (30) Q[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG+2)
UTG folds, UTG+1 calls 20, Hero calls 20, 3 folds, BTN calls 20, SB calls 10, BB checks

Flop: (100) 9[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/club.gif[/img] (5 Players)
SB checks, BB checks, <font color="red">UTG+1 bets 20</font>, <font color="red">Hero raises to 100</font>, BTN calls 100, 3 folds

Turn: (320) Q[img]/images/graemlins/club.gif[/img] (2 Players)

Hero...