$6.50/45 help with check push on a rag flop

[muffins]

What do you do here? BB has joined the table 11 hands ago and is 27/0. We are 1st & 2nd chip leaders and it's down to about 15 players remaining. I have been slightly LAG since BB joined the table. Comments on PF play welcome too - should I have pushed this?

Poker Stars, $6 + $0.50 NL Hold'em Tournament, 200/400 Blinds, 7 Players
LeggoPoker.com - Hand History Converter

Hero (UTG): 8,605
UTG+1: 4,720
MP: 1,887
CO: 7,063
BTN: 1,309
SB: 1,854
BB: 8,887

Pre-Flop: (775) Q[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to 1,600</font>, 5 folds, BB calls 1,200

Flop: (3,575) 3[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets 2,400</font>, <font color="red">BB raises to 7,262 and is All-In</font>, Hero ?

[Marduk]

never fold here ever. the only thing in his range you're losing to is a set; he does this with so many hands you crush.