Does hole in my hood affect cooling? And should I get Hood to rad/hood to cowl seals?

The hole might even make the car run cooler. On old Z cars the front fenders act like a scoop and kinda pressurize the engine bay once you hit 60+ mph, then the temperature needle rises and the AC quits working well. The fix is to vent the hood or leave out the inspection doors. Course the aero on those old Z's is pretty awful