[iamastud]

My belief and immediate reaction is to fold this hand and not pursue this one any further.

There is still the possibility of his having 3 kings, becasue as you said, it is more correct for him to flat call than raise it on 3rd with so many limpers. If he has 2 pair instead, you are essentially only drawing to your straight with pairing or two pairing along the way of no help to you. It is always worthwhile to have backup alternatives to the hand you are trying to make in case you dont make it and you are not in that position, unless you also had 3 suited going on also. The only hand that you could be happy with his having enabling you to chase is the kings with 2 other high cards. Even the kings with 3 suited would not be what you are looking for.

So, given that you are heads up, I can not see that it is correct to chase. I would fold.