400nl...flop bluff, good or spewey?

[LucidDream]

Villain is basically a total NIT. 16/1.3 and he hasn't done anything out of line. I think his min bet is super weak and he is just tesing the waters with a mid PP. I don't really know if he calls this with AQ or not but I would think by his numbers I may be able to get him to fold it. If he calls the flop I am obv done vs a player who could have QQ here after just smooth calling preflop. There is no way he has a 3 unless it is 33 either.

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $2/$4
5 players
Converter

Stack sizes:
UTG: $596
CO: $787
Hero: $401.50
SB: $464.50
BB: $120.65

Pre-flop: (5 players) Hero is Button with 5[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/spade.gif[/img]
UTG folds, CO calls, <font color="#cc0000">Hero raises to $18</font>, 2 folds, CO calls.

Flop: Q[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] ($42, 2 players)
CO checks, <font color="#cc0000">Hero bets $30</font>, <font color="#cc0000">CO raises to $60</font>, <font color="#cc0000">Hero raises to $160</font>, CO folds.
Uncalled bets: $100 returned to Hero.

Results:
Final pot: $162