Drill a hole into Fuel Filler Neck?

I have the same dart as you my man, i know how the grommet works. lol. on the lower one BELOW the grommet, i see no reason you can't run a TAP through the hole you drill to thread in a barb. AFTER you slide it back through the trunk grommet. I know its thin walled but i have had guys seal them with teflon paste, or even epoxy sealer. You very completely understand how the FCC will only burb fuel on occasion, if at all. We're not talking a pressure fed line here. Also with the fuel modulation settings in the handheld, you can turn the pump down and it will burp even less.

If you weren't on the other side of the state i'd tell you ro bring it to me!