NL10: AK facing turn decision - Baluga?

[doppelganger]

Villain is about 40/8/5 over only 50 hands. No other reads. Anybody push here? Call? Fold?

Poker Stars, $0.05/$0.10 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

BTN: $9.90
Hero (SB): $10.95
BB: $11.40
UTG: $17.05
CO: $10

Pre-Flop: A[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/club.gif[/img] dealt to Hero (SB)
2 folds, BTN calls $0.10, <font color="red">Hero raises to $0.50</font>, BB folds, BTN calls $0.40

Flop: ($1.10) J[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $1.05</font>, BTN calls $1.05

Turn: ($3.20) 9[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $1.90</font>, <font color="red">BTN raises to $3.80</font>