I'm not an expert on that particular engine, but most gassers with a pumper carb will run reliably no matter where the tank is as long as it delivers fuel and not air bubbles. If the tanks are set up properly (clunk not stuck ) the system of two tanks should be very reliable. The "tee" fittting may also work as the engine will pull fuel from both tanks. However, it may not draw fuel evenly, so after a while it may draw all 50 ounces of fuel from one tank and only 30 ounces of fuel from the second tank. As soon as either tank gets empty, the plane engine will quit. That's why I like the idea of two tanks in series.