OK to call down?

[akvsaq]

Party Poker 2/4 Hold'em (8 handed) converter

Preflop: Hero is UTG+1 with 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, CO calls, <font color="#666666">2 folds</font>, BB calls.

Flop: (6.50 SB) J[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, CO folds, <font color="#CC3333">BB raises</font>, Hero calls.

Turn: (5.25 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero calls.

River: (7.25 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero calls.

Final Pot: 9.25 BB

I may or may not have the best hand but I have outs to a gutshot str8 and set, if I didn't have outs, I'd call the flop w/ intention of raising turn and folding to a 3 bet. Any thoughts on my play of this hand and thoughts if I didn't have outs? (Assume we have no reads but most likely typical passive opponents.)