1967 Plymouth Barracuda - Fuel tank not vented properly??????

Will the little problems PLEEEEEASE stop mounting up????? :rolleyes:

I was about to comment that it hadn't gotten all that hot yet in Oklahoma....BUT......
TODAY IT HIT 100 degrees F!
I went out into the garage after dinner, greeted by the strong smell of gasoline!
First thought was my new Barracuda project.
Sure enough! I've got gas dripping down from the fuel tank onto the floor.
(Thank GOD I had the garage door open; as we have a gas water heater in the garage.)

After immedaitely throwing one of my old large bath towels under the car, my memory kicks in, that someone months ago mentioned my fuel tank may not be vented properly.
So, I pop the fuel cap and am greeted by a quick slosh of gas on my hands.
Yes, the last time I drove the Cuda I filled the tank up.

With all the other stuff I have been fixing, I will plead ignorance or overwhelmed.
There is a vent tube running along the filler tube to the tank, that is connected up near the fender to the filler tube. Picture...

fuel tank vent tube 1.jpg

But, where the end runs down to the trunk floor that vent tube is merely poked trough a small opening in the trunk floor.
(So, I am assuming that the extra gas pressure from the tank seal at 100 degrees went down that tube, dripping on top of the fuel tank.
Therefeore what I saw "leaking" was probably dripping on top of the tank from that tube, and running over the side of it.
Picture to tube down end...

fuel tank vent tube 2.jpg

I will vertainly check out the Service Manual.
But, I figure someone can expalin the correct venting to me better tha poor diagrams in the service manual.