Was This A Good or Bad Gigabet-Wannabe Play?

[FakeKramer]

No major table reads, just got moved to this new table. $2 Tournament. 1200 started. 80 are left. I'm about 35thish and chips and confident I'm one of the Top 3 best players left in the tournament. I figured calling this bet doesn't really hurt my position too much, and it's a cheap shot to double up and knock out two guys. If I miss, I still feel good about my recovery chances. That in mind, what do you think of this play? Be honestly brutal if you must.

PokerStars No-Limit Hold'em Tourney, Big Blind is t1200 (9 handed) FTR converter on zerodivide.cx

Button (t5066)
SB (t6100)
Hero (t22492)
UTG (t37652)
UTG+1 (t24190)
MP1 (t6638)
MP2 (t39930)
MP3 (t6105)
CO (t31779)

Preflop: Hero is BB with 4[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t6563</font>, <font color="#666666">4 folds</font>, SB calls t5425 (All-In), Hero calls t5363.

Flop: (t17951) K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players, 1 all-in)</font>

Turn: (t17951) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players, 1 all-in)</font>

River: (t17951) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players, 1 all-in)</font>

Final Pot: t17951

Results in white below: <font color="#FFFFFF">
SB has Jh Js (full house, jacks full of kings).
Hero has 4s 3c (two pair, kings and threes).
MP1 has 6d Ac (one pair, kings).
Outcome: SB wins t16764. Hero wins t1187. </font>

Thanks!