On the way home from Oshkosh Dennis and I made a 14,500 ft run at
economy cruise power with supercharger settings and IO settings.  OAT
was 52F, 27.5 MAP and 2400 RPM.  Fuel burn was 14.9 GPH with a TAS of
237 KTS.  in the IO setting of 17.5 MAP we made only 201 TAS.  This is
where the supercharger concept works best.  Oshkosh to Vegas in 5hrs 45
min.

Rick