need a little help picking the right prop for my zx180

[sterling6069]

i have a 97 zx180 skeeter single console it has a 6 in eletric jackplate with a 96 model 150 mercury xr6 on the back it has the factory 4 blad ss prop on back i think it is a 25 pitch but not reel sure due to there is numbers on the prop but not ones that i have been able to trace to a pitch or a size it is a quicksilver prop i really dont want a 4 blade so does anyone have a boat same as this that might steer me in the right direction thanks also it runs right around 60 mph like it is i was told this boat should do around 65-70 easy but it will not with this prop i do not know the rpm yet it is running at wide open

[dr. seuss]

i doubt you have a 70gps boat..i had the sx180 bout the same year with a 120 on the back..mph said 54 but im sure it was more like 44..my boat now will hit the 70 mark..you can feel the difference in speed real fast in boats