New Gas Tank, 4 vent tubes

Here's what I'd do. Remove the sender and look inside. If you can see a small "tank" built into the inside top of the tank, that's a fill limiter, and I believe the vents may connect with that. It's a fill limiter device. You probably want to reach in there and drill or punch a couple of holes in the thing to make it ineffective.

See if you can identify the shortest vent, IE one which does not extend into the tank. If you have any plans to use a return (vapor return, etc) I would "save" it and cap it with a short hose / bolt/ clamps

The other three I'd make sure they are clean, sand them, squeeze them flat and solder them shut