I got an Apollo SS 13 1/4 X 17 it runs my little boat 40 mph with a 90
HP motor. IMHO They work great and are relatively inexpensive.

There's a lot more than just HP that relates to the speed. I have a 19pitch on
my 18' boat with a v6 and it is perfect for the boat --that same prop isn't so
good on the 22'....

I'm leaning towards a 4 blade based on some reading & information I gleemed from
"those in the business" (but not salesmen)

Thanks
-j