2/4 NL, Bluffing in a blind battle

[Tokyo!!]

Villain is 31.6/26.3 over 19 hands, and has 3bet a couple times preflop, and in general has been active postflop. I believe he is capable of raising this flop with air, but in general, is this a good spot to try a bluff? I figured any raise less than allin would pot commit me, or at least would make things really ugly. My image had been very tight so far, running at 14.3/10, mostly due to poor cards. Was this spew?

PokerStars No-Limit Hold'em, $4 BB (5 handed) internettexasholdem.com

MP ($566)
Button ($262.50)
Hero ($395.40)
BB ($364)
UTG ($1179.55)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $16</font>, BB calls $12.

Flop: ($32) 6[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $26</font>, <font color="#CC3333">BB raises to $60</font>, <font color="#CC3333">Hero raises to $379.4</font>, BB ??.

Final Pot: $471.40