I pulled the lower we had some flow, did a flush. That improved it some. The water pump is new, so after the flush I took her out for some drive time. It seems to have improved a little. But it still got hot on a Sunday afternoon drive. So I pulled the radiator, taking it in for a core change. I did order a new 160 thermostat, I understand that it gets installed in the housing with the spring down and the retainer goes next with the bevel edge up? thanks