10NL Blind Steal; river gut shot on scary board

[TheRedRocket]

Full Tilt No-Limit Hold'em, $0.10 BB (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($3)
MP1 ($9.65)
MP2 ($18.50)
CO ($10.40)
Hero ($11.05)
SB ($9.70)
BB ($7.55)

Preflop: Hero is Button with 7[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img].
UTG calls $0.10, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $0.55</font>, <font color="#666666">1 fold</font>, BB calls $0.45, UTG folds.

Flop: ($1.25) 4[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $1</font>, BB calls $1.

Turn: ($3.25) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: ($3.25) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $3.25</font>, <font color="#CC3333">Hero</font>


Ive played 4 hands with villian. folding is not an option but do I raise AI or just call?