[UVaHoo]

Without some kind of read against a field this size, I will generally check the flop if checked to, or raise if one of the blinds bets to clear up a few outs in a large pot. If I don't improve on the turn, I treat it like drawing hand, evaluate my outs/odds, and play it from there.

With the turn in your case, I really don't want to get involved, as you could be drawing dead if someone hit their gutshot.