Top pair, avg kicker, facing a bet on the flop.

[splittter]

Live 2 table, 19 person tournament. About 90 mins in.

Hero has t6,500, MP1 has t4,100.

Preflop: Hero is MP2 with K [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/club.gif[/img]
<font color="#666666">1 fold</font>, UTG+1 calls t200, MP1 calls t200, Hero calls t200,<font color="#666666"> 2 folds</font>, button calls t200, SB calls t100,<font color="red"> BB raises to t600</font>, UTG+1 calls t400, MP1 calls t400, Hero calls t400, <font color="#666666">button folds</font>, SB calls t400.

Flop: (t3,200) K [img]/images/graemlins/club.gif[/img], 8 [img]/images/graemlins/diamond.gif[/img], 5 [img]/images/graemlins/heart.gif[/img] <font color="blue"> (5 players) </font>
SB checks, BB checks, UTG+1 checks, <font color="red"> MP1 bets t1,300 </font>, Hero ?

What's the best play here? Is it a fold pre-flop?