Red,
Others will know better what might be done with your particular carburetor. I am sure that I haven't worked on one like it. In general, you need to get the bowl open to check the needle valve and float. Directions for setting the float level might be included with your rebuild kit instructions. Good luck. I understand the frustration. I have a 66 GMC truck that wouldn't start after changing the alternator wiring, and just by chance I tracked it to a loose wire in a multi-strand plug that had been jiggled while doing other work.
Your rebuild kit instructions might also advise a starting point for the screws that adjust the idle mixture. I haven't found this adjustment to be critical for fixing the type of problem you are describing because just a light throttle should keep the motor running.
