Prop ? 90 yamaha 2 stroke

[90tiller]

looking for some prop advice. Im running a 1754 cajun special bay sport, i took the center console out and modified back deck and now running a 90 yamaha 2 stroke tiller on 6" manual jack plate. Right now im running a powertech SCD 17 and only getting around 5000 rpm and about 40-41 mph. Now that is with a little load. Me, wife, two small kids, trolling motor w/ extra battery. Gas tank and batteries are in the back. Would this boat be better off with a bow lifting prop or just go down in pitch with the SCD? Any other recommendations? thanks