I'm having trouble getting fuel to the cylinders. It started with a bad brain box, then the triggering coil went bad. Before they went bad it ran great. Now I have excellent fire to all plugs and excellent compression on each cylinder. Cleaned the carburetors they were spotless . Tried different fuel tanks and still nothing . If I spray fogging oil in to carbs while turning engine over it fires right up.Is it the reed valves or fuel pump?

I suspect the pump.