What style fuel line is best?

Maybe it's because I'm on my phone, but I am so lost, looking at your set up
Are you running your fuel into the filter, then the log, then the regulator and the "out" port from there back to the tank?

yes sir, precisely. From the research I have done, that is a way to get a constant flow of cool fuel from the tank straight to the carb. The vapor lock issue I was having before is nonexistent. The carburetor return style regulator is plumbed on the return line because it acts as a return restrictor. I remember talking about doing it this way with a few other members.