Prop questions

[J.e.hagen]

I have 18x42 weld built tunnel hull with 2000 model mariner 40 I have a 4 blade prop right now bc I busted my three blade and I'm not happy with it it's not near as fast and doesn't carry a load as well my three blade I currently have it at 14 pitch with a pretty strong cup any input is appreciated

 

[fordwrench]

What was the specs on the original 3 blade prop.

 

[J.e.hagen]

15 pitch I'm not sure on the diameter but it was the normal size