1966 dart gas cap question?

since the wix filter i have installed is not a vapor separator, what is it? is the real vapor separator the better choice thanks for all the info

Post 14 says "NO YOU ARE FINE" That means you are going the RIGHT DIRECTION. The WIX filter is just THAT. A LIQUID FUEL FILTER. It is not a vapor separator. With what you are doing, the fuel filter is RIGHT.