I had a hand in a previous sit n go where i had QQ and ran in to AA maybe that made me lay this one down.It also not far in and i have no read.

Full Tilt Poker Game #3070906659: $5 + $0.50 Sit & Go (23457860), Table 1 - 20/40 - No Limit Hold'em - 9:22:37 ET - 2007/07/27
Seat 1: VaPoRiZeUK (1,405)
Seat 2: afklml (1,470)
Seat 3: protrader531 (1,395)
Seat 4: mtchefdcs (1,550)
Seat 5: speed71 (1,445)
Seat 6: kasbears82 (1,310)
Seat 7: nickell711 (1,230)
Seat 8: Avolar (1,405)
Seat 9: LUVMEORHATEME (2,290)
VaPoRiZeUK posts the small blind of 20
afklml posts the big blind of 40
The button is in seat #9
*** HOLE CARDS ***
Dealt to VaPoRiZeUK [ ]
protrader531 folds
mtchefdcs calls 40
speed71 folds
kasbears82 folds
nickell711 folds
Avolar calls 40
LUVMEORHATEME folds
VaPoRiZeUK raises to 320
nickell711 has returned
afklml has 15 seconds left to act
afklml folds
mtchefdcs raises to 1,550, and is all in
Avolar folds
VaPoRiZeUK has 15 seconds left to act
VaPoRiZeUK has requested TIME
VaPoRiZeUK folds
Uncalled bet of 1,230 returned to mtchefdcs
VaPoRiZeUK has returned
mtchefdcs mucks
mtchefdcs wins the pot (720)
*** SUMMARY ***
Total pot 720 | Rake 0
Seat 1: VaPoRiZeUK (small blind) folded before the Flop
Seat 4: mtchefdcs collected (720), mucked

Not a bad laydown, but I call here.

You invested too much already with that 320 raise, you get ~1.7:1 on a call.

good fold, your original raise is bigger than it needs to be, though.