Those are not really considered SC's - you can't connect much with themJust two possible straights.
SC's like 67, 89 - I would pretty much avoid. You have to be pretty deep to play them profitably, and you want a couple of limpers in front of you, so they're an easy fold utg, and I never pretty much never play them in turbo sng's.
What hands you can open raise with depend on your stack and the blinds. The point at which you can play QK UTG in a Sn'G is the point where you have to push all-in with it IMO.