Do you fold the nut flush here, if i dont am i bad?

[MyPTBB100isPOOP]

villian is 16/7 over 300 hand, i dont consider him an idiot but my reads are generally off.
Comments on turn welcome
SB: $135.55
BB: $249.00
Hero (UTG): $206.10
MP: $194.60
CO: $193.00
BTN: $197.00

Preflop: Hero is dealt A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img] (6 Players)
<font color="red">Hero raises to $8.00</font>, 3 folds, SB calls $7.00, BB folds

Flop: ($18) 9[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $12.00</font>, SB calls $12.00

Turn: ($42) T[img]/images/graemlins/heart.gif[/img] (2 Players)
SB checks, Hero checks

River: ($42) 3[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets all-in for $115.55</font>, Hero [img]/images/graemlins/confused.gif[/img]

[TheKitbag]

if i'm SB i play like this with 99 or 100 only. But it's not me. It's a huge overbet and looks like its almost never a bluff. I hate folding here but i think it's the right move

[FishSticks]

16/7 seems pretty tight. River overbet shoves are usually either monsters or air, but more often monsters. From a huge nit, I'd say this is very likely to be a boat.

[Imrahil]

Easy fold given his stats.

[Symbolic]

Yeah fold this for such a huge overbet. He almost always has a boat or even quads. Don't get zeebo'd!

[cjp010]

Hes hoping you hit the flush card hard, i've made it a habbit of calling huge over bets from maniacs on the river and been paid pretty well for it but with his stats theres no doubt hes got a boat.

[RUDIKULOUS]

fold please unless youve seen him try some retarded stuff.

[traz]

This is almost always 99/TT imo