Overheating problem, and drips water?

My vehicle overheats and drips water. I already replaced the water pump, thermostat, radiator, spark plugs, coolant, air filter. And I put all the seals brand new for the intake manifold and the thermostat, and I put a brand-new battery. And then there’s a metal pipe that goes under the intake manifold I replaced that metal pipe also and it still leaks and overheats.