Rebuilt top end of engine now carb idles much higher?Please help

Yes you should have a vacuum guage, a dwell tach, and a timming light.

In your photos 2 #2 and 3 it almost looks like your throttle cable is bottoming out on the linkage. Could be binding and keeping your idle high.

I assume you adjusted the idle stop screw out so to lower the idle.

Also you may be at an rpm where your mechanical advance is pulling in speeding up the engine.