Not sure I understand. Because you didn"t win this particular hand you"ve decided your play was wrong. His call with Q8 is bad, that doesn"t make your play bad, does it?
it does boshi if u know villain calls with the top 33% of his range 
work it out , its -ev , factor in also that maybe villain is clueless then 74o doesnt look very rosy
He doesn"t get the top 33% of his range very often though, only about 33% of the time in fact. And he"s folding the times he doesn"t have it. Also, 74o has ~31% equity vs the top 33% of hands. Work it out. It"s +EV.
please read thread as u have to work out the FE for the sb + bb which if they both call loose is - 40% fold - 60% call
This is not a sb versus bb situation which would be ok for 74o [maths push] but when on the button pushing 74o into 2 loose callers of 33% your fold equity is different 55+,A2s+,K4s+,Q6s+,J7s+,T7s+,98s,A5o+,K8o+,Q9o+,J9o+,T9o
.40*1350 = 540
.60*.31*7050 = 1311
.60*.69*-5700 = -2359
= ev of -508
in order to push 74o to be profitable u need the bb and bb to fold 60% of the time , for that u need both players [sb+bb]to have calling ranges of 22% or less , rather nitty if villains know u are pushing ATC on the button [seems the fashion
] so the button should adjust his shoving range ... u can shove the top 53% to be ok [maths +ev] - 22+,A2s+,K2s+,Q2s+,J4s+,T6s+,95s+,85s+,75s+,64s+,54s,A2o+,K2o+,Q7o+,J8o+,T8o+,98o
to be about break even u can widen more to 70% tops which means 74o is still a no no , if u want to shove correctly.
Set the Payout structure to "1" and enter in your blinds/antes and stack sizes. This will give you a pretty good idea of what your shoving range should be. And if you look at the calling ranges it suggests for your opponents, you will notice that some people don"t call as wide as they should, so obv you can push a little wider than it suggests likewise if they call loose then u tighten your push range... this is ok ish to review with ...
http://www.holdemresources.net/hr/sngs/icmcalculator.html?action=calculate&bb=600&sb=300&ante=50&structure=1&s1=&s2=&s3=&s4=&s5=&s6=&s7=5700&s8=12000&s9=12000 for approx guide
or stick in full table -
http://www.holdemresources.net/hr/sngs/icmcalculator.html?action=calculate&bb=600&sb=300&ante=50&structure=1.0&s1=30000&s2=39000&s3=7600&s4=23000&s5=10000&s6=47000&s7=5700&s8=12000&s9=12000tinker with it..
the good ole jcm push charts [in pdf]
http://members.cox.net/wastrel333/Pushbot%20Charts1.pdf
