[Watain]

I think you are drawing dead here. I seems like he have a pair of K, a set or a straight. The best you could hope for is a semi-bluff with a open straight draw (unlikely) or a full-blown bluff (even more unliky).

Let´s say you are in front 5% of the times here. If you give this one up you´ll lose 0,4 big bet. And you have to call 2 big bets to se the river. You have 4 % of hitting the Q on the river, but with the st8 draw i would say that it would only make you a winner 2% of the times.

So let´s say have 6% pot equity, that´s around 0,5 big bet.

Fold the bastard.