NL 10 - Big draw against an unknown

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Poker Stars - No Limit Hold'em Cash Game - $0.05/$0.10 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $16.25
BB: $9.90
UTG: $11.10
<font color="black">Hero (CO): $12.30</font>
BTN: $12.10

<font color="black">Preflop:</font> Hero is dealt K[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img] (5 Players)
UTG calls $0.10, <font color="red">Hero raises to $0.50</font>, 2 folds, <font color="red">BB raises to $1.20</font>, UTG folds, Hero calls $0.70

<font color="black">Flop:</font> ($2.55) T[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">BB bets $0.80</font>, <font color="red">Hero raises to $3.00</font>, BB calls $2.20

<font color="black">Turn:</font> ($8.55) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks

Pot Size: $8.55




No reads, how would you play the turn and why ?
Any comments and/or ideas about the hand are welcome.

Oh and the preflop call was only because I knew villain was pretty bad and if I managed to flop anything I could break him.