Best way to vent fuel tank?

Evan Dutch said

I have a new fuel neck in the box so I’ll use the one for a 1971 scamp. Did you make your hose into a U shape like the factory pipe? Also, whenever the hose exits the floor where Did you ultimately run it to?

Did you have any issues with threading your fitting into the filler neck? The tubing wall of the filler neck should be thick enough to accept a tap right?

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The reason I drill a small hole and forced a tapered punch in was tofold the metal inward for material for the pipe tap to force the threads outward. All I used was a 90 fitting on the top and ran the line down to the underside of the floor . Exactly what the factory did for 67-70 cars with the metal tube. I may have a 70 dart tube but I do not have a cap to go with it..

71's have a vented cap but with my fuel consumption I wanted to make sure I had a big enough vent system.