JC, the Cline regulator comes with a small check valve that slides into the pressure line near the muffler pressure tap, makes most tanks bulge a little. The regulator is a demand regulator and only lets fuel flow when the engine demands it. I just ran my Saito .30 with a Cline right beneath the carb, I made a video of it but my computer decided it can't see the Camera, so I gotta work that out.

I'm listening to a Slim Dusty CD so I wont' throw the PC or the camera through the wall.