I'm still having the same problems with my 63S. So far to date I've removed the regulator adjustment screw, spring, and plunger and flushed the regulator with fresh fuel 3 times. I've Switched to a brand new jug of fuel, put a new filter clunk in the gallon, put all new fuel line everywhere on the plane and from the jug to the pump. I'm filtering the fuel at the clunk in the gallon, after the pump before the tank on the plane, between the tank and engine, and between the engine and the check valve and I'm still getting fuel running out of the carb as soon as the tank is pressurized. Since I've replaced the enitire fuel system and filling system and added extra filters I don't think I could still be getting dirt into the regulator to cause this problem. I really love the power of this engine and loved how it ran last season but so far this year I've worked more on this engine than I've flown the plane.

Does anyone have any other suggestions on what I should try?