Can’t figure out this carb and idle
Set initial @ 14, back the mixture screws out 2 turns from lightly seated.
With the choke set it should start and run. Is the choke adjusted properly? Try opening/closing choke after the engine fires to see if you can keep it running.
Put the timing light on the coil wire, start the engine and watch the light when the engine stalls. Does the light flash until the engine stops turning?