ANY Justification for this Play? Any?

[EasilyFound]

$11 SNG. I hadn't had a hand for a while or any oppty to steal and blinds were just eating me up (I'd have only 570 if I fold and be down to 470 after posting the SB in the next hand). Is there an +EV in pushing or should I have waited for the next hand or two and hope I get a chance to push?

Party Poker No-Limit Hold'em Tourney, Big Blind is t200 (6 handed) converter

CO (t1665)
Button (t980)
SB (t870)
Hero (t770)
UTG (t2155)
MP (t1560)

Preflop: Hero is BB with K[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">SB raises to t425</font>, <font color="#CC3333">Hero raises to t770 (All-In)</font>