Boy this is confusing. I called Seacraft and they got the best performance numbers with a viper 14 3/4 x 17. 45 mph @ 5600 w/ a 150 on a 20 footer. Why don`t they understand the dynamics of the hulls they make?

I`ve been talking w/ Powertech and they have been great. What pitch and diameter Powertech/ Mirage plus would you use w/ a 150 ocean pro on a 20 sf? I have a 40 gal livewell going under the, soon to be made by a friend , leaning post. dual bats under the console. I`m on a budget. Ha, I can`t believe I just said that.
Thank you Father Frank.
p.s. How do different props achieve bow / stern lift?