New Engine won't turn over!! Help

Cylinders full of gas? Sounds like your carb floats are not closing properly, electric pump just dumping fuel right through. I'd be inclined to crank it over with all plugs out to blow out the gas then put a small amount of oil in each hole to get oil back on the cylinders as the gas has probably washed them down dry. You may want to change the oil to before starting, if your talkin alot of gas it probably ran right past the rings into the bottom end. Better checkout that fuel system before trying to start again. Is the carb new?