I'm sticking with a mechanical pump. A full size 1/4" return would make pressure drop off to the carburetor too much. I plan to stay mild to moderate slant 6, so I'm good. Otherwise, I'd run a return regulator with a hot electric pump. I thought about, but that's not the direction I want to go.
Well the filter 1/4" return has an orifice so return line size does not matter. They are designed just for that, and were used on Jeeps, etc (carbureted)
