fuel pump push pull question school me

stumper said

The top fittings are for return and venting lines, not for outlet. I know of no external electric pump that is designed to suck fuel from the tank (especially without an internal line that goes into the fuel). While all pumps have some suction head to them these pumps are designed to have a gravity flooded inlet and push out to the carb.

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Well said.....but there are some cells with top fittings for outlets that have siphon lines which run to the bottom of the cell. In either case, you're dead on the money. Fuel HAS to be drawn from the bottom of the tank somehow. If you don't think a Holley red pump will suck fuel out of a tank or cell with a top mounted outlet with a siphon tube going to the bottom of the tank, you should try it sometime. LOL