76 flops a straight + flush draw

[AaronOC]

In an unraised pot, villain is a pretty straightforward passive type player (21/6/1) even if i do think that i am up against a higher flush do i still be calling this, and likewise, if i think villain has a higher flush draw, should i still be calling?

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

Hero ($242.55)
UTG ($140.75)
MP ($197)
CO ($92.46)
Button ($255.33)
SB ($198)

Preflop: Hero is BB with 6[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img].
UTG calls $2, <font color="#666666">3 folds</font>, SB completes, Hero checks.

Flop: ($7) T[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets $5</font>, <font color="#CC3333">Hero raises to $15</font>, UTG calls $15, SB calls $197 (All-In), Hero calls $240.55 (All-In), UTG folds.