($60) AK first hand, flops TPTK but draw hits on turn

[taipan168]

First hand, no reads. How is this line? Does anybody C-R the turn or value bet the river?

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed) Hand History Converter Tool from FlopTurnRiver.com

Button (t1500)
SB (t1500)
BB (t1500)
UTG (t1500)
UTG+1 (t1500)
Hero (t1500)
MP2 (t1500)
MP3 (t1500)
CO (t1500)

Preflop: Hero is MP1 with A, K.
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t80</font>, <font color="#666666">1 fold</font>, MP3 calls t80, <font color="#666666">4 folds</font>.

Flop: (t190) 8, K, 6 <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t140</font>, MP3 calls t140.

Turn: (t470) 7 <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t300</font>, MP3 calls t300.

River: (t1070) 8 <font color="#0000FF">(2 players)</font>
Hero checks