318 timing

What condition is the rest of the ignition system....spark plug wires, spark plugs and what gap, distributor cap and rotor corrosion free at the contacts? You can have timing dead nuts correct, but a weak spark won't do any good.
I have had the same starting issue after sitting to go in store or after refueling, and it was just the Eddy carb....they are great carbs, but sometimes throw fits.
I went with different carb and it starts within first revolution of crank hot or cold.