Vapor lock, possibly?

[asapguy]

Just acquired a nice 55 2dr Fairlane from my uncle. It had to be transported from Iowa the PNW in an enclosed trailer so gas was at 1/8 tank. I took it for the 1st ride with my wife after adding 2 gal of gas from a can. It was warm day, mid 80's. The car ran fine to my son's house 6 miles away. it was shut off there for about 15 mins & started right up for the return home. About a mile after leaving it start crapping out & quit. Thinking it was still low on gas I called my son & he brought me 5 gals. We had waited about 15 mins for him to bring the gas but it started right up again after adding gas. Started home again another mile, same thing & it quit. We were going down a very long hill and able to coast to parking lot. Again after sitting about 10 minutes it started up & made it home. I'm guessing vapor lock The fuel pump looks new. I used non-ethanol gas.