Ok, I’ve read all the posts on this, and I still have questions about fuel delivery. My jeep has 5/16 fuel lines coming up the frame, then they couple to rubber lines up to the fuel rail. When I put the 4BT in, I’d like to just put a bypass regulator in on my fuel line, and an extra return line for it back to the tank, then continue to use the stcok fuel pump in the tank. In my thinking this makes up for not being 3/8, as the pressure will still be there, but will the volume? My plans for now are to keep the engine in its stock form (performance wise). Then once it’s in, and all the bugs are gone, I can add all the fancy stuff.