Top 2 deep vs big donkey, does he really have KT??

[profEERNIE]

Guy is big donk, 53/30/1.7 with a turn AF of 7 and river AF of 8 over 500 hand sample but low PF and flop AF

No history apart from I'd 3bet a few times and been called and c/folded or c-bet and took it down. Not out of the ordinary, and no big showdowns.

Turn shove or fold better?

Party Poker - No Limit Hold'em Cash Game - $2/$4 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $214.46
BB: $400.50
UTG: $743.28
MP: $632.56
Hero (CO): $686.90
BTN: $334.42

Preflop: Hero is dealt Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (6 Players)
UTG folds, MP calls $4.00, <font color="red">Hero raises to $18.00</font>, 3 folds, MP calls $14.00

Flop: ($42) J[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $30.00</font>, MP calls $30.00

Turn: ($102) A[img]/images/graemlins/heart.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $76.00</font>, <font color="red">MP raises to $160.00</font>, Hero calls $84.00

River: ($422) K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">MP bets all-in for $424.56</font>, Hero folds