5/10 blind battle, probably too weak?

[xcrack999]

Villain is Padirk165. I have him at 23/10/3 over a couple hundred hands, but we have no history that I can remember. He insta-bet the flop after I checked if that changes anything.

Full Tilt Poker - No Limit Hold'em Cash Game - $5/$10 Blinds - 6 Players - (LegoPoker HH Converter)

Hero (SB): $1,068.00
BB: $1,000.00
UTG: $1,624.00
MP: $300.75
CO: $469.00
BTN: $647.75

Preflop: Hero is dealt K[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] (6 Players)
4 folds, <font color="red">Hero raises to $35.00</font>, <font color="red">BB raises to $105.00</font>, <font color="red">Hero raises to $315.00</font>, BB calls $210.00

Flop: ($630) 6[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">BB bets all-in for $685.00</font>, Hero folds