Vapor Lock question

Think I am gonna vent the filler neck and run a hose along the neck and down under near the frame. Sort of like this one I found on the net, only difference it that it will connect into filler neck near top.
Thanks for all the knowledgeable info!

This is exactly what I posted earlier. The only reason the factory changed it is because of the evaporative emissions stuff came along in 70/71. If you have the means and skills to do so, that is what I'd do.