50NL TPGK in a multiway pot

[homeslice]

When I raised PF, I thought I would be able to narrow the field, however that didn't work. As you see SB bets small on the flop, getting everyone to fold, but what's my play. this is only my second orbit with this villian, so I don't have a good read. Do I call or do I raise?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($49.25)
CO ($50.05)
Hero ($51)
SB ($51.05)
BB ($67.15)
UTG ($51.70)

Preflop: Hero is Button with Q[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls $0.50, MP calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $3</font>, SB calls $2.75, BB calls $2.50, UTG calls $2.50, MP calls $2.50.

Flop: ($15) 8[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets $5</font>, BB folds, UTG folds, MP folds, Hero ???