Need some help
You still need to test the fuel pump. The pressure may look fine at idle but what about under load? You need to disconnect the fuel line from the carb and add a length of hose where you can pump gas into a bucket safely. You may not have enough volume. There could be some small specs of dirt got into the needle and seat in the carburetor. You should have a 40 micron filter before the carb not the cheap glass filters. Did you do away with the factory fuel filter that is on the frame rail on the driver's side.