56s should I have Folded?

[ImAKing]

This was within the first 3 rounds at the table, and I didnt have any stats on either of the people in the pot.

Should I have folded, I think my pot and inlplied odds were good enough for a call here, but what do you think??

Full Tilt No-Limit Hold'em, $1 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($103.20)
CO ($87.10)
Button ($116.60)
Hero ($143.60)
BB ($160.90)
UTG ($29)

Preflop: Hero is SB with 5[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">CO raises to $3.5</font>, Button calls $3.50, Hero calls $3, <font color="#666666">1 fold</font>.

Flop: ($11.50) Q[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">CO bets $6</font>, <font color="#CC3333">Button raises to $18</font>, Hero calls $18, <font color="#CC3333">CO raises to $89.6 (All-In)</font>, <font color="#CC3333">Button raises to $131.1 (All-In)</font>, Hero calls $95.10.

Turn: ($345.30) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players, 2 all-in)</font>

River: ($345.30) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players, 2 all-in)</font>

Final Pot: $345.30