Attempting to learn full after playing tons of short. A friend and I debated, raise this flop or just call? Villian is a 9.09/7.4/1.57 over 154 hands.

Party Poker 2/4 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is CO with 6[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img]. Hero posts a blind of $2.
<font color="#666666">3 folds</font>, <font color="#CC3333">MP2 raises</font>, <font color="#666666">1 fold</font>, Hero (poster) calls, <font color="#666666">1 fold</font>, SB calls, BB calls.

Flop: (8 SB) 6[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, <font color="#CC3333">MP2 bets</font>, <font color="#CC3333">Hero...</font>