Engine stalls at high speed

[mp15]

My 15 hp Johnson stalls at high speed. If I squeeze the primer bulb it will stay running. The engine runs smooth but keeps running out of gas. I've cleaned the carb. and checked the reed valves. Replaced the fuel pump, gas line to the carb, gas line to the tank with new fittings and primer bulb. Cleaned the tank and checked the screen and vent. The compression is good with 100 on the top and 105 on the bottom cylinders.