2009 Sportsman 500 H.O. Fuel Pump

Hi All: Getting back as Im still having a fuel issue with this bike and not sure if its pump, carb. or what. I bought an "aftermarket" pump and carb. and the bike will not start after sitting for awhile. And im not sure why but if I blow into the tank either by mouth or air nozzle itll fire up. as it warms up i start to see fuel coming out of the rubber hose at bottom of bowl. As I rev it up more fuel comes out. It eventually will stall out and more than likely have to pressurize tank again to get it to start. Any thoughts or troubleshooting techniques would be greatly appreaciated.