5/10 Live hand, gutshot straight + fd facing flop overbet...

[wpr101]

5/10 at the Venetian. 4 limpers and I limp in the SB with 5[img]/images/graemlins/club.gif[/img]3[img]/images/graemlins/club.gif[/img].

Flop comes: Q[img]/images/graemlins/heart.gif[/img]6[img]/images/graemlins/club.gif[/img]2[img]/images/graemlins/club.gif[/img]. 2 checks to this guy who bets 80 into this 50 dollar pot. The only read I have on this guy is that he has overbet into a multiway pot twice before; he won both pots so I don't know what his overbet means. Either way I don't give his overbet much respect and I call flop.

Turn (pot 210): Turn is an ace and it goes check/check.

River: is a queen. Now the board is Q62AQ with no flush draw possible. I think about it for a little and lead for 140. I figured that my hand has no showdown value and a missed FD would be in his range. I didn't know if I could get him to fold though, hard to know much about his calling range.

Thoughts on all aspects?