Should I bet this turn into the 3 flush?

[pearljam]

with 2 callers it seemed likely that somebody hit there flush, so I checked waiting to see what happened. He went all in very quickly which led me to believe he didnt have it, so I ended up calling.

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (10 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

CO (t595)
Button (t875)
Hero (t755)
BB (t710)
UTG (t710)
UTG+1 (t800)
UTG+2 (t935)
MP1 (t1070)
MP2 (t775)
MP3 (t775)

Preflop: Hero is SB with J/images/graemlins/club.gif, A/images/graemlins/spade.gif.
<font color="#666666">5 folds</font>, MP3 calls t15, CO calls t15, <font color="#666666">1 fold</font>, Hero completes, BB checks.

Flop: (t60) J/images/graemlins/diamond.gif, A/images/graemlins/diamond.gif, T/images/graemlins/heart.gif <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets t70</font>, BB folds, MP3 calls t70, CO calls t70.

Turn: (t270) 4/images/graemlins/diamond.gif <font color="#0000FF">(3 players)</font>
Hero checks, MP3 checks, <font color="#CC3333">CO bets t510 (All-In)</font>, <font color="#CC3333">Hero raises to t670 (All-In)</font>, MP3 calls t670.

River: (t2120) A/images/graemlins/heart.gif <font color="#0000FF">(3 players, 2 all-in)</font>

Final Pot: t2120

Results in white below: <font color="#FFFFFF">
Hero has Jc As (full house, aces full of jacks).
MP3 has 6d 7d (flush, ace high).
CO has 3c Ac (three of a kind, aces).
Outcome: Hero wins t2120. </font>

[pearljam]

Hey, thanks for the responces in the other 2 hands I posted last night, could I get some thoughts on this one maybe? thanks.

[ldavidjm]

Newb to the forum so take it with a grain of salt-

Timing tells are pretty worthless, don't rely on them. You checked to see what happened and he went all in for quite a bit more than the pot. The pot is small enough you could throw out a bet of 150 or so and fold to an all in. Once he goes all in to your check I don't think you can call. Plus with another player in he's more unlikely to bluff the flush than if its heads up. Lucky river.