I would prefer the Optimax over the 4 stroke for 75 & 90 hp.<br /><br />The 4 strokes are carbureted, at least untill the 2006 models arrive.<br /><br />The Optis are "DI" which will help give you better overall performance, economy, etc...
Rabidfish,<br /><br />So are you saying if the 75 & 90 HP 4-stroke was EFI, then you would go that way instead of the Optimax?<br /><br />Thanks,<br /><br />-TheChad