The answer to my A/C problem...
The "air gap" between the a/c clutch and the compressor is too great. It can be adjusted and set to within specs. What is happening is that when the rpm's are over 1,000 there is a greater pull by the magnet in the compressor, keeping the clutch engaged. When the rpm's lessen the magnetic pull weakens and the compressor and clutch separate, therefore causing no A/C.