I have a friend (non-computer guy) looking for 582 - Avid components. I will forward you list to him. If you've been on the Yahoo forum for a while you know that the VW will be a long, frustrating uphill battle. I can't name a single successfully flying VW in the Kitfox/Avid community. I can name several who have tried and either given up and parted out their total project or went with a different engine after much frustration and expense. I wish you luck with it.
Specs: Classic IV-1200 105 hp Zipper 912 78" x 48" Prince fixed pitch prop 26" Airstreaks 700# empty weight I cruise about 100 mph at 5200 rpm. I can get 115 at 5800. With the large tires I can sustain climb at 1700+ FPM, solo with half fuel.
With my 21x800-6 tires I am seeing about 3-5 mph more speed at the given power settings and 200 FPM more climb.
My old plane, IV-1050, 650#, with 80 hp 912 and 68" 3-blade Warp taper tip, would easily see 15 mph more speed across the board, with a max of 1200 FPM climb when very light. Takeoff distance was substantially longer.
This photo is a friend of mine, Joe "The Point Man" Mapes. He had an engine-out (Snowmobile 503) with this plane a week earlier. He flies this Ridge Runner like a Boss! Window open and elbow in the breeze every time... So Kool!
I've thought about this too. I think the "normal" VGs for a wing may be too large for a flapperon, but the theory is sound on their operation. They would help if you are having flapperon inversion issues...