I noticed in this hand against the guy heads up on 5th str he requested time, at that moment I knew he may be on a drawing hand or a smaller pair and was afraid that the king, so with that observation I made my play.

My question was would you have made this play or was it a bad one?

PokerStars Game #3462016702: Tournament #16919662, Hold'em No Limit - Level I (10/20) - 2005/12/28 - 17:31:49 (ET)
Table '16919662 20' Seat #3 is the button
Seat 1: Bradz24 (1510 in chips)
Seat 2: Kalypso (1490 in chips)
Seat 3: goat6969 (1520 in chips)
Seat 4: MysticElf (1480 in chips)
Seat 5: Sverige36 (1500 in chips)
Seat 6: crunchboy7 (1500 in chips)
Seat 7: tiltt (1500 in chips)
Seat 8: gspadz (1440 in chips)
Seat 9: shysti (1500 in chips)
MysticElf: posts small blind 10
Sverige36: posts big blind 20
*** HOLE CARDS ***
Dealt to shysti [Ad Jc]
crunchboy7: folds
tiltt: calls 20
gspadz: raises 20 to 40
shysti: calls 40
Bradz24: calls 40
Kalypso: calls 40
goat6969: folds
MysticElf: folds
Sverige36: calls 20
tiltt: calls 20
*** FLOP *** [7s 3c 9d]
Sverige36: checks
tiltt: checks
gspadz: bets 20
shysti: calls 20
Bradz24: folds
Kalypso: calls 20
Sverige36: folds
tiltt: raises 60 to 80
gspadz: calls 60
shysti: calls 60
Kalypso: calls 60
*** TURN *** [7s 3c 9d] [2s]
tiltt: checks
gspadz: checks
shysti: bets 400
Kalypso: folds
tiltt: calls 400
gspadz: folds
*** RIVER *** [7s 3c 9d 2s] [Kd]
tiltt: bets 200
shysti: raises 780 to 980 and is all-in
tiltt: folds
shysti collected 1770 from pot
shysti: shows [Ad Jc] (high card Ace)
*** SUMMARY ***
Total pot 1770 | Rake 0
Board [7s 3c 9d 2s Kd]
Seat 1: Bradz24 folded on the Flop
Seat 2: Kalypso folded on the Turn
Seat 3: goat6969 (button) folded before Flop (didn't bet)
Seat 4: MysticElf (small blind) folded before Flop
Seat 5: Sverige36 (big blind) folded on the Flop
Seat 6: crunchboy7 folded before Flop (didn't bet)
Seat 7: tiltt folded on the River
Seat 8: gspadz folded on the Turn
Seat 9: shysti collected (1770)