I have been told that a good reason to run your scoop backwards is to do away with the USCG approved spark arrestor. If the scoop is facing forward you must run a spark arrestor, if the scoop is facing towards the stern of the boat then the law allows you to run a normal air filter (keeping backfires or flames from coming at passengers/driver). Kinda makes sense to me.
This is an interesting thread though, I'd like to know the true reasons behind it. I guess since my "doghouse" came with the air passage facing backwards from the factory... and I don't race my boat... That I must be gay... Hmmm...
I've also been told that guys that crack gay jokes at other obviously straight men are only in denial of their own gayness. Maybe they just fantasize about it in their free time, which gives them the ideas for the jokes in the first place... Hmmm...