can I fold KK preflop here?

[TightIsRight]

$30 Deepstack. Hand #3.

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed) converter

MP3 (t5100)
CO (t4960)
Button (t4900)
SB (t4980)
BB (t4980)
UTG (t5120)
UTG+1 (t5000)
MP1 (t4940)
Hero (t5000)

Preflop: Hero is MP2 with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img]. UTG posts a blind of t20.
<font color="#CC3333">UTG+1 raises to t120</font>, MP1 calls t120, <font color="#CC3333">Hero raises to t375</font>, MP3 calls t375, CO calls t375, <font color="#666666">2 folds</font>, UTG (poster) calls t355, <font color="#CC3333">UTG+1 raises to t5000</font>, MP1 folds, HERO???