Re-powered my 2007 330 from 3.3 F250s to F300 4.2s, two years ago. Now have over 250 hours on them. 17p props from my old 250s were too high-pitched to get enough WOT RPM went with lower pitch 15p and economy is 1.0 to 1.2 fully loaded, but seeing significantly higher cruise sppeds. 27 kts at...