Hello Jeff Holmes and welcome to FTE.

I doubt you will get any response from the original poster in this thread. He posted once about 1 year ago and hasn't posted since.

It sounds like you also have a head gasket issue. The only way to tell for sure is an engine tear down, although a compression test might show a head gasket issue, if 2 adjacent cylinders are both down on compression. Another quick test is to have a mechanic use a tailpipe sniffer in the radiator (or overflow bottle) to detect the presence of combustion gases.