definately not with outboards .seen one running around discovery bay for years with a 2.5 merc and that thing was lucky to see 85 mph . personally i find it hard to believe that boat with a heavier v-8 and outdrive doing better speeds than say 2.5 merc just my .02I built the plug to run in a Mercury Mrine sponsored class using their outdrive-engine package with a 350 sbc. I never saw a pic of the completed boat. The picture I have of the plug under construction does not show much of the lines of the boat. They could have run with outboards. Jack said the boat ran in the 110 + mph range.