PP 10+1: Getting scared on the river

[ChuckNorris]

This was a bit embarassing.. I was looking at the wrong stack when making my turn bet: I thought that T366 was going to put him all-in.. Luckily, it was an ok sized bet anyways. But what to do on the river, that is the question. Should I bet a little to let him just call, push, call his push? I had no particular read on him. I don't think calling his all-in is right, but could there be a way to avoid it?

What do you think he's holding? 99, K9, JT, AJ?

Seat 10 is the button
Total number of players : 8
Seat 1: dude0471 ( $1729 )
Seat 2: hero ( $1483 )
Seat 3: Josh_Heller ( $366 )
Seat 4: calfusion ( $1235 )
Seat 5: phillyray11 ( $542 )
Seat 6: flatline2 ( $1048 )
Seat 7: wmarquardt ( $1192 )
Seat 10: pm5kdm ( $405 )
Level:3 Blinds(25/50)

** Dealing down cards **
Dealt to hero [ 8s As ]
Josh_Heller folds.
calfusion calls [50].
4 fold
dude0471 calls [25].
hero checks.

** Dealing Flop ** [ Qc, 9h, Ad ]
dude0471 checks.
hero bets [150].
calfusion calls [150].
dude0471 folds.

** Dealing Turn ** [ 7h ]
hero bets [366].
calfusion calls [366].

** Dealing River ** [ Kc ]
hero checks.
calfusion is all-In.
hero folds.