icm question: set mining early

[hoyasaxa]

First, a big hand I won. This is the second hand of the tournament:

Full Tilt Poker No-Limit Hold'em Tourney, Big Blind is t30 (9 handed) Hand History converter Courtesy of PokerZion.com

Button (t1470)
SB (t1470)
BB (t1500)
UTG (t1500)
Hero (t1500)
MP1 (t1410)
MP2 (t1500)
MP3 (t1650)
CO (t1500)

Preflop: Hero is UTG+1 with 4[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to t90</font>, Hero calls t90, <font color="#666666">2 folds</font>, MP3 calls t90, <font color="#666666">3 folds</font>, BB calls t60.

Flop: (t375) 4[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, UTG checks, Hero checks, <font color="#CC3333">MP3 bets t30</font>, BB calls t30, UTG folds, Hero calls t30.

Turn: (t465) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets t425</font>, MP3 calls t425, <font color="#CC3333">BB raises to t1380 (All-In)</font>, Hero calls t955 (All-In), MP3 folds.

River: (t3650) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players, 2 all-in)</font>
.

Final Pot: t3650

Results in white below: <font color="#FFFFFF">
BB has Jd Jc (one pair, jacks).
Hero has 4h 4s (three of a kind, fours).
Outcome: Hero wins t3650. </font>

Now, in this hand,I called 90 chips to win almost 2000.

The question is, is this equity improvement worth the call? This is assuming i simply fold to any bet without a flopped set. Also, how much did my equity improve with new stack at 3500?