This boat is 11'4" long, and I have a 1979 Merc 70 mounted on a 10" setback jackplate with a 10 3/8 X 14pt 3 blade prop. I'm unsure of the prop manufacturer. I'm in the "dial-in" process, The jackplate it came with had no adjustments so I had to redrill the holes, and think I'm about correct...