Found the problem

Well I checked for vacumn leaks and found none. So I took off the carburetor and took it apart again. Concentrated on cleaning again all passages. And then I found the problem. I looked at the venturi booster and found one of the air tubes was clogged. I can't believe I missed it. Cleaned it out, re-assembled it and put it on tonight. I finally got a low curb idle of about 500 rpm with out the surging, missing, and curb idle of 800 rpm just to keep it running as I had before. What a difference a little occlusion makes. Thanks again.