FTP26$: Should I CB with my AK after 3-bet PF?

[TimberBee]

Hi guys. This is the 14kg DS, 26$ buyin. I'm new to the table, so readless.

Comments on PF and flop?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $25/$50
9 players
Converter

Stack sizes:
UTG: $4120
UTG+1: $2435
MP1: $3805
MP2: $1140
MP3: $3360
CO: $3470
Button: $2655
SB: $2915
Hero: $3100

Pre-flop: (9 players) Hero is BB with A[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/spade.gif[/img]
UTG folds, UTG+1 calls, <font color="#cc0000">MP1 raises to $100</font>, 5 folds, <font color="#cc0000">Hero raises to $450</font>, UTG+1 folds, MP1 calls.

Flop: 5[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img] ($975, 2 players)
<font color="#cc0000">Hero bets $650</font>