What is his range for check/raising this flop on this board?

[Sherman]

2nd hour of the $10 20K Gtd. Villain is 18/4 over like 12 hands or so.

We are both top 30 in chips with like 700 or so left.

Poker Stars, $10 + $1 NL Hold'em Tournament, 150/300 Blinds, 8 Players
LeggoPoker.com - Hand History Converter

UTG+1: 1,890
MP1: 34,518
Hero (MP2): 21,575
CO: 6,920
BTN: 4,187
SB: 14,081
BB: 19,913
UTG: 14,467

Pre-Flop: (650) Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (MP2)
2 folds, <font color="red">MP1 raises to 1,200</font>, Hero calls 1,200, 4 folds

Flop: (3,050) K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] (2 Players)
MP1 checks, <font color="red">Hero bets 2,100</font>, <font color="red">MP1 raises to 33,293 and is All-In</font>, Hero???