Update:

I started taking the car back apart to see if I could figure out what I did wrong. When I pulled the intercooler hose off the throttle body, I noticed that the bottom lip of the rubber hose had folded under when I had reinstalled it on the throttle body fitting. Thinking that was the source of the vacuum leak, I put everything back together again and tried it out. It runs much better, but I still have a major vacuum leak, based upon the lack of power boost on the braking and the dismal engine performance. I now suspect that its the intake manifold that may be leaking. I cleaned off the surface of the head, but don't recall checking the manifold sealing surface. Hopefully, that will be the problem. Tearing it back down again tomorrow for the third time. On the up side, I am getting pretty good at doing the pcv system service and I know where all the vacuum lines go! John K