Is there any way i am head of his range here, can you justify a call?

[Hooked]

This was one of the trickiest spots of the session still not to sure what to think of the river, thoughts are extremely appreciated. Did not use pokerace hud this session so no stats and so far when this hand came up no reads.
Full Tilt Poker - No Limit Hold'em Cash Game - $1/$2 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $207.75
BB: $85.00
UTG: $345.95
MP: $200.00
Hero (CO): $398.00
BTN: $260.65

Preflop: Hero is dealt Q[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] (6 Players)
2 folds, <font color="red">Hero raises to $7.00</font>, BTN folds, SB calls $6.00, BB folds

Flop: ($16) 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $12.00</font>, SB calls $12.00

Turn: ($40) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $30.00</font>, SB calls $30.00

River: ($100) 9[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $75.00</font>, Hero??