I would not want to have this hood on a car that has to be a daily driver. Getting cought in a rain storm with it could be a problem. I think as long as you are driving at a decent speed you would be ok, but at a stop I'm sure your engin would get wet. For washing, I find a layer of masking tape covering the openings from the back side works well.
Fred 95 300TT SGP Stage..Who knows..lol Dynoed 539.4 RWHP, 481.2 Lbs. Torque Pump Gas @ 17 Lbs. of Boost NO NOS!!