25/50 deep stack kjo

[MattC]

villain is 18/16/6 and plays the nosebleed stakes from time to time.

Full Tilt Poker - No Limit Hold'em Cash Game - $25/$50 Blinds - 6 Players - (LegoPoker HH Converter)

Hero (SB): $13,302.00
BB: $4,900.00
UTG: $8,207.00
MP: $5,000.00
CO: $11,911.00
BTN: $1,900.00

Preflop: Hero is dealt J K (6 Players)
UTG folds, <font color="red">MP raises to $150.00</font>, 2 folds, <font color="red">Hero raises to $550.00</font>, BB folds, MP calls $400.00

Flop: ($1150) Q J[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero ?

really no idea wtf to do here