The loosing fuel or flooding could be it not get enoug fuel or to much and that could also effect the power to the fuel and air ratio go to be just right so it can run. To much fuel makes it burn to lean and is not getting enough air with the gas and is causing it to flood cause no air is mixing with the air to keep it running and if it is losing fuel it could be that it is getting to much air and not enough fuel. You going to have to mess with the air/ fuel ratio until it runs right if carbed you got to mess with screws to set the ratio, if fuel injected it is going to have to have a programer/tuner hooked to the dianostic port on the car.