Here's how I'd start. Plumb them with the biggest, smoothest bending, tubing possible. I'd say atleast 5/32", x large tygon and run them in series to the UAT. If your running a jet cat, I go to the test functions menu, up the pump voltage to 5V and completely drain the fuel system, through the fuel pump.

That JC pumps sucks, alot! If your UAT turns into a raisin and starts sucking bubbles through the filter element, then you are too restricted.

Why 5 volts? Because thats probably close to full throttle.