If we put him on a raise stackoff range of AJcc, QJcc, AQ, KQs, TT, one QQ combo and 1 overpair combos (he might slowplay those sometimes), we have around 20% equity if we get it in.
Board: Qs Tc 4c
Dead:
equity win tie pots won pots tied
Hand 0: 78.695% 78.53% 00.17% 14771 31.50 { AcAd, QcQd, TT, AQs, AcJc, KQs, QcJc, AQo }
Hand 1: 21.305% 21.14% 00.17% 3976 31.50 { KcTh }
We risk 84,50$ to win the 43,50$ in the pot.
So our EV is (x*43,5)+((1-x)*21)-((1-x)*79) with x being his fold percentage.
If we solve that we see that we need around 57% fold equity to be breakeven here.
Don't think he raise/folds that much in a 3bet pot...
(/edit: forget to add KJcc, but that doesn't really make a difference, now we have 22% equity)
Well, I suck at math, so lets use words 
You say preflop is a resteal, so I think you 3bet KTo as a bluff (not too much value in getting called, other than JTs or T9s sometimes).
So you bluff, because he folds too much and he has a hard time continuing with his wide range (which is in fact really tight from the button ^^).
Now he calls which means a pretty tight range and this is a flop which hits his 3bet calling range really good (the Q is always a terrible card if you want to bluff in a 3bet pot, cause he has a lot of AQ, KQ and sometimes QJs). He now not only calls, but raises your cbet which he only does 15% of the time (this number is lower than losing with AA to a pocket pair pre all in, just for comparison).
Does that sound like a spot you want to semi-bluffshove needing a lot of fold equity? 
Lets get back to the flop and back to the math.
If he raises 32% pre (btw: we need to know a lot more about this hand to see if this is true. it depends a shitload on what kind of player you are and also what kind of player SB is. none informations about this, so it's impossible for us to figure out his BU opening range and his continuing range vs you) and only continues with 29% (just using his stats now) means that he continues with only around 9% of starting hands.
This probably looks something like this 99+, ATs+, AJo+, QJs, KQ and A7s/A5o for his bluff 4bets.
He is going to 4bet AK, QQ+, A7s/A5o preflop so his range on the flop looks like AQ, AJ, ATs, KQ, KJs, QJs, TJs, JJ, TT, 99.
Board: Qs Tc 4c
Dead:
equity win tie pots won pots tied
Hand 0: 58.329% 58.01% 00.32% 33311 181.50 { JJ-99, AQs-ATs, KJs+, QJs, AQo-AJo, KQo }
Hand 1: 41.671% 41.35% 00.32% 23746 181.50 { KcTh }
For our half pot cbet to be profitable we need to have 33% fold equity.
We are oop and he basically only folds if he has exactly 99, probably he folds AJ sometimes, but that has a gutshot and overcards and he has position.
We can't really realise our equity, cause we are going to have a terrible, terrible time oop.
So this is probably not even a cbet in the first place, although it looks incredibly weak to check/fold 2nd pair here.
It's just a board that totally smashes our opponents range...
Once he starts to call preflop with QTs, T9s, some more suited Ax and more PPs, sure, go ahead and cbet.