Jackie: The development of the rotary was done outside of the race group. Mike Griffith and I both worked in the rotary group under George Miller. Jack Leek's race group consisted of Charlie Strang, Jack Leek, Clarence Blanchard, Paul Cobb, Don Henrich and Ray Wagner along with 6 or 8 technicians. Bob Nagotie and Jimbo actually worked in a different location and were more involved with the boats (ie: the goat boat). While the race group technicians assembled the rotaries, none of the design or development was done by them. Mark is correct in that OMC didn't have a dedicated test facility like Lake X. Lake Michigan was typically to rough to test tunnel boats and the local lakes frowned on race boats running 100+ MPH. Of course, both froze up in the winter. The test station in Stuart was on the intercostal and not really suitable for testing race boat either. Fl testing was done on the river above the locks. Jim Nerstrom and Don Kunney got involve with the 3 cylinder race engine, but again was directed under the outboard group. Kunney was promoted to chief Engineer and Nerstrom joined the race group as a development engineer after I left in '76. Prior to that development of the race engine was done by the outboard group, technical services (exhaust tuning) and the race group technicians. As I said before, OMC race development was go to the race a day or 2 ahead of time, run a couple of props and go race. Nobody believes me, but thats how it was when I was involved. Mark was also right about the noise of the rotary and its why I'm 3/4 deaf today. Manually adjusting carbs while in the dyno room running a 7000 was quit a thing.