392 walbro electric fuel pump question

I'd imagine this regulator by Aeromotive, would be fine to use with this pump for a carburetor.

http://www.summitracing.com/parts/aei-13204/overview/

I will be using this same pump and regulator for my carb'd 408 stroker.

I have to build a return system now.

Can I use a -6 ( 3/8 ) return if I use the factory 3/8" feed line?