I have a 30ft with speedy 2's and approx. 450hp each side.......

My 320 with 496 ho's has 4 blade brovo 1's, 30 pitch, RPM's 5,000.

I help build the boat blown assets a few years back we ran 3 blade shot hub 29*16 with about 800hp they worked the best until one day on are way back in to Baltimore we broke a prop shaft. On that boat the drives were to deep, but the owner would not let me raise the X. Running speed masters is nothing like running bravo's or Trs's so don't pick somthing to big and watch, the first props we tried made thing handle like pig. The boat ran and handled the best with Trs's and 34*15 4 blades @6000 rpms but the life span of a drive was about 2 days. The owner loved to hear the blows and I must say I did to, that old girl was a lot of fun in her day.