Are you talking about an inlet to feed your electric pump, or an outlet for the pressurized fuel? There are a multitude of ways to get it done. Many methods work good when the tank is half full or more, but few are just as efficient at providing air free fuel when you get down to the last gallon or so.
Depending on budget, you can use a Holley Hydramat on the feed side. The stuff is simply amazing.
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