Another river bluff

[Hattifnatt]

Have been 3-handed for a little while, I have been pretty active taking down many pots on the flop. Villian has been somewhat loose preflop and straightforward postflop.

Stacks:
Hero: $1243
SB: $419

2,5/5, 3-handed

Preflop: Hero is Button with 9[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
Hero raises to 17,5, SB calls, 1 fold

Flop: 5[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/spade.gif[/img] (40, 2 players)
SB checks, Hero bets 40, SB calls

Turn: T[img]/images/graemlins/club.gif[/img] (120, 2 players)
SB checks, Hero checks

River: 6[img]/images/graemlins/club.gif[/img] (120, 2 players)
SB bets 70, Hero raises to 330..

Good or spew?

Comments on all streets are welcome.