KK in a reraised pot OOP, Ace on the flop

[friend_]

Villain is something like 33/14/1.5 - 60 hands, no reads.

Prima Network No-Limit Hold'em, $10.00 BB (6 handed) Hand History converter Courtesy of PokerZion.com

saw flop|<font color="#C00000">saw showdown</font>

CO ($4284.50)
<font color="#C00000">Button ($778.50)</font>
Hero ($1000.00)
BB ($1236.13)
UTG ($950.00)
MP ($2388.43)

Preflop: Hero is SB with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $20</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to $90</font>, <font color="#CC3333">Hero raises to $295</font>, <font color="#666666">1 fold</font>, MP folds, Button calls $205.

Flop: ($620) A[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $483.5 (All-In)</font>, Hero folds.

Final Pot: $1103.50

Did I make a mistake by folding on this flop?