25nl: AK TPTK, raised on turn, baluga?

[seat_empty]

Villain is 26/8.5/2.71 over 70 hands. No real reads beyond his stats. With no completed draws out there, do i have to put him squarely on a set?


Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $25.25
<font color="black">BB: $24.90</font>
<font color="black">Hero (UTG): $49.25</font>
CO: $16.00
BTN: $27.55

<font color="black">Preflop:</font> Hero is dealt K A[img]/images/graemlins/heart.gif[/img] (5 Players)
<font color="red">Hero raises to $1.00</font>, 3 folds, BB calls $0.75

<font color="black">Flop:</font> ($2.10) J[img]/images/graemlins/spade.gif[/img] 7 A (2 Players)
BB checks, <font color="red">Hero bets $1.75</font>, BB calls $1.75

<font color="black">Turn:</font> ($5.60) 4 (2 Players)
BB checks, <font color="red">Hero bets $4.25</font>, <font color="red">BB raises to $12.00</font>, Hero ??