I had a facet fuel pump in my Bay van when it was aircooled and petrol engined. It just came on with the ignition, you could hear it ticking away quietly. It was fairly low pressure, the float valves controlled the amount of fuel into the carbs.
I bought a different fuel pump in later years for one of my diesel cars and it was like a power hose! You'd need a pressure regulator if running it on a carb engine.
Look up the Facet "cube" style pumps. That's what I had.