Let me try again - I'm new to the forum and posted last night and don't see my post yet.
I put my vent in the same location as Waiter's. I used a slot instead of a hole for the air inlet. I'm really happy with the air flow. I'm not happy with the very loud noise when I close the vent. It whistles pretty obnoxiously. I haven't tried any fixes. Does anyone have an idea?
I used the RV NACA inlet on the left side for the passenger. I found it to be good quality and am happy with it, but have not flown with it yet.
If you havn't noticed yet, James Redmon used the RV inlet on his Berkut and documented the install on his web site. He recommended the inlet to me.