Oh well I flopped quads, nevermind

PokerStars Game #7454768475: Tournament #38134263, $5.00+$0.50 Hold'em No Limit - Level II (15/30) - 2006/12/15 - 15:21:59 (ET)
Table '38134263 1' 9-max Seat #2 is the button
Seat 1: xrckjamesx (2350 in chips)
Seat 2: womanliker (2650 in chips)
Seat 3: AceHunters (1635 in chips)
Seat 4: beej6213 (1295 in chips)
Seat 5: Jonny Mavric (1375 in chips)
Seat 6: elysses (545 in chips)
Seat 7: jharding666 (2185 in chips)
Seat 8: 65 Rocket (1465 in chips)
AceHunters: posts small blind 15
beej6213: posts big blind 30
*** HOLE CARDS ***
Dealt to jharding666 [Kd Kc]
Jonny Mavric: folds
elysses: folds
jharding666: raises 120 to 150
65 Rocket: folds
xrckjamesx: folds
womanliker: folds
AceHunters: calls 135
beej6213: folds
*** FLOP *** [Ks Kh 6d]
AceHunters: checks
jharding666: checks
*** TURN *** [Ks Kh 6d] [8c]
AceHunters: bets 120
jharding666: calls 120
*** RIVER *** [Ks Kh 6d 8c] [4c]
AceHunters: bets 150
jharding666: raises 260 to 410
AceHunters: calls 260
*** SHOW DOWN ***
jharding666: shows [Kd Kc] (four of a kind, Kings)
AceHunters: mucks hand
jharding666 collected 1390 from pot
xrckjamesx said, "omg"
*** SUMMARY ***
Total pot 1390 | Rake 0
Board [Ks Kh 6d 8c 4c]
Seat 1: xrckjamesx folded before Flop (didn't bet)
Seat 2: womanliker (button) folded before Flop (didn't bet)
Seat 3: AceHunters (small blind) mucked [Ad As]
Seat 4: beej6213 (big blind) folded before Flop
Seat 5: Jonny Mavric folded before Flop (didn't bet)
Seat 6: elysses folded before Flop (didn't bet)
Seat 7: jharding666 showed [Kd Kc] and won (1390) with four of a kind, Kings
Seat 8: 65 Rocket folded before Flop (didn't bet)

By the way, any idea how I could have got more chips out of this???

(not knowing he has AA!)

yeah, bet that flop..make a bet of maybe half pottish and take it from there.. play the hand on the flop as if u had AQ.

by checking that flop in position, you are representing KK/AK, nothing else would have checked behind on that flop.

Thanks for the analysis mate but is the rule not to wait for your opponent to catch up when you flop an absolute monster? I bet sets, 2 pairs and flushes almost all the time but quads?! KKA or KKQ would be easier to bet, but KK6?
If I bet, what's he calling me with? He only flat called PF so it's hard to put him on a big pair as well.
He may try and bluff at this but early on in a tournament when he has no reads on me I think this is unlikely. If I check behind he might just think I'm weak? If I was playing with my mates in a home game I'd bet this every time because they know I'll follow through with any 2 cards here and will most likely check raise me.

Thats exactly what I was thinking, what possibly could the person be calling with? Obviously they didnt have a king the only thing i could think of is like a mid pocket pair, A 6, I mean you defenitly want them to catch up there. I think you got as much chips as possible. Nice play