I might as well throw my numbers out there.  1996 Champion 202 w/ a 2005 Yamaha 200hp 3.3 HPDI, 8" rapid jack running 25 pitch tempest prop w/ shaft 3" below the pad.  Fully loaded running 71mph GPS at 5750 rpm. Just purchased a 225 ECU and can't wait to get it hooked up.  Hope to get my rpms up to 6 grand.