Manual to Electric Fuel Pump
Electronic fuel pump: indigoelectonics.com or moyermarine.com Dont forget to add a ''safety switch'' to the oil pressure sender so that the engine will cut-out if the oil pressure drops - so you dont fill the bilge with raw gasoline.
Since the carburator is an updraft (but does has a suction port to take ''drips'' in the carb entry), you progbably have a cylinder that is misfiring or not firing at all. An A4 will run smooth firing on just 3 cylinders.
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