Sorry... I really wasn't blowing it off... I was just trying to understand how it could cause the problem. Thanks for the explanation.

I just went out to check it and I don't see any gas coming out of the port. However, when I removed the vacuum hose and smelled it, I do smell gas vapors on the end that goes into the regulator. The car has been sitting for about a day. I started it up and let it run for a few minutes before I checked it again. Still not gas... but the smell remains. It's not strong, but it's definitely there. (But only on the end that goes into the regulator.) Should I be smelling anything? Should I maybe check it after running the engine for a longer period of time?