How many barrels do you fire into a pot with missed AK?

[BB_Specials]

FullTiltPoker Game #160245000: $20 + $2 Tournament (956696), Table 10 - 50/100 - No Limit Hold'em - 15:52:54 ET - 2005/07/20
Seat 1: bronze (2,760)
Seat 2: DBLfister (2,340)
Seat 3: HunterLee (5,140)
Seat 4: jaminator24 (3,435)
Seat 5: cc1319 (5,030)
Seat 6: LesterMurphy1 (4,565)
Seat 7: kiddav (2,190)
Seat 8: RatPackCpt (935)

Seat 9: hero (3,245)

kiddav posts the small blind of 50
RatPackCpt posts the big blind of 100
The button is in seat #6

*** HOLE CARDS ***
Dealt to Hero[A[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/heart.gif[/img]]
Hero raises to 350
bronze folds
DBLfister calls 350
HunterLee folds
kiddav: easy Hunter, point made dont rub it in
jaminator24 has 15 seconds left to act
jaminator24 folds
cc1319 calls 350
HunterLee: [img]/images/graemlins/wink.gif[/img]
LesterMurphy1 has 15 seconds left to act
LesterMurphy1 folds
kiddav folds
RatPackCpt folds
*** FLOP *** [6[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img]]
Hero bets 500
DBLfister folds
cc1319 calls 500
*** TURN *** [2[img]/images/graemlins/club.gif[/img]]

Hero?


Do I fire again into a missed AK or should I just check/fold here? Maybe a 1/2 pot and fold to a raise?