medium pocket pair on a pf raise

[black666]

$4.40 180-SNG

PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (8 handed) internettexasholdem.com

MP1 (t4050)
MP2 (t7950)
CO (t3510)
Button (t4871)
Hero (t2369)
BB (t6255)
UTG (t930)
UTG+1 (t3210)

Preflop: Hero is SB with 6[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/heart.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls t150, <font color="#CC3333">CO raises to t450</font>, Hero???

With a call in front, I didn't put CO on a steal. But is my stack big enough for a call? Or should I just shove?