My 75 F250 was running great when I bought it 2weeks ago, and then I switched tanks. Thats when it first acted up. The fuel empty's out of the filter and dies. Then when I take off the fuel line off the carb, it shoots fuel about 15 ft, and blows off my vacuum plugs off intake. I've been told it could be points, but my truck has the ignition controll box. If someone knows or has experience with this problem, I would appreciate any input on this. thanks!!!![:@]