AQ on 4-bet pot.

[Tumez]

Game #5573832974: Holdem NL ($10/$20) - 2007/09/16 - 17:57:59 (DST)
Table "ElliotLake" Seat 1 is the button.
Cryptolig skin

Seat 1: flaxegris ($1803 in chips)
Seat 2: Jemstone ($1015 in chips)
Seat 3: Bubblibub ($2255 in chips)
Seat 4: Stockport ($1000.01 in chips)
Seat 5: Hero ($2323 in chips)
Seat 6: Inicius ($2240 in chips)

Jemstone: posts small blind $10
Bubblibub: posts big blind $20

----- HOLE CARDS -----
dealt to EmilRetee [A [img]/images/graemlins/spade.gif[/img] Q [img]/images/graemlins/heart.gif[/img]]

Hero: raises to $70
Inicius: raises to $220
flaxegris: folds
Jemstone: folds
Bubblibub: folds
Hero: raises to $690
Inicius: calls $470

----- FLOP ----- [4 [img]/images/graemlins/heart.gif[/img] T [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/diamond.gif[/img]]

Hero: checks
Inicius: checks

----- TURN ----- [4 [img]/images/graemlins/heart.gif[/img] T [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/diamond.gif[/img]][Q [img]/images/graemlins/spade.gif[/img]]

Hero: checks
Inicius: bets $900
Hero: folds

I have Inicius runnig at 26/20/5, He had been 3-betting me very light, (and I had been mainly folding) so I decided to play back. I would have of course called a shove preflop, but he flat called. Should I bet the flop? Is this instamuck on turn? What do you think is his range?