Greetings Zspoiler & all: Your set up must have something different than mine?? I had thought the same thing until Mother Nature showed me different. Coming back (75 mi) from Car Craft Nat's (2016?). I drove in what weather man say is "training rain" (1-1/2 hours) at 35 40 MPH when most drivers were on the side of road. Heavy rain would be an understatement! So I'm watchin' the rain come off the raised cowl portion of the hood excepting it to turn 180* & I would have pull over to the side of the road too. To my amazement the rain only turned 90* down into the windowshield cowl! Car ran fine, so when I got home I opened the hood excepting a wet air box! To my surprise like ONE drop of water, 99% dry, go figure. Now had I been able to drive faster the higher pressure may have driven the rain into a 180* turn & I would of seen more water enter the air box. But haven't experience that problem either, maybe because it would be a lighter rain when ya can 60-70 MPH. But what I did experience from that torrential down poor (Car Craft Nat's) was humidity vapor getting into the distributor threw the vent (MSD vented cap). And that sets under the air box & is sealed from the open air box. So that moisture was just spray coming up around the engine-trans area kicked up by front tires. From experience, Ole Bob.
Ps: Note hood vents for exiting HOT air, could be bigger!