4th street play 25/50

[badbeat jUtsU]

I'm a huge NL donk (Mr. Larry M) with limited deep-stack experience against the villain RunanwayT.

question: what's my OPTIMAL play on the turn?

(no hand history)

VILLAIN (button): 8,580
HERO (sb): 12,750

Villain raises 200 preflop, hero calls with 10 [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img].

FLOP: Q [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/club.gif[/img] 4 [img]/images/graemlins/heart.gif[/img]

HERO bets 300, villain raises to 1200, HERO calls.

TURN: 6 [img]/images/graemlins/diamond.gif[/img]

HERO checks, villain bets 2500, hero ?