river bet sizing 10/20hu NLCASH

[jsnipes28]

kinda ugly board and i think a shove is representing Ks, how much to bet, and can you b/f?

Full Tilt Poker - No Limit Hold'em Cash Game - $10/$20 Blinds - 2 Players - (LegoPoker HH Converter)

Clayrock: $2,889.50
Hero: $2,459.50

Preflop: Hero is dealt Q[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero raises to $60.00</font>, Clayrock calls $40.00

Flop: ($120) Q[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/heart.gif[/img] (2 Players)
Clayrock checks, <font color="red">Hero bets $99.00</font>, <font color="red">Clayrock raises to $240.00</font>, Hero calls $141.00

Turn: ($600) T[img]/images/graemlins/spade.gif[/img] (2 Players)
Clayrock checks, <font color="red">Hero bets $400.00</font>, Clayrock calls $400.00

River: ($1400) A[img]/images/graemlins/spade.gif[/img] (2 Players)
Clayrock checks, <font color="red">Hero bets...