1990 raven 195cc prop question

I have finally completed fixing my baot and it already had a new prop installed by previous owner.It has a stainless 3 blade mirage prop with 19 pitch.PO told me he changed to new prop last year and boat did not run as fast but ran at higher rpm's.He dont remember what old pitch was so i cant find out what it came with so im looking to see if i can either find correct original or ask for suggestions.

Boat specs..1990 raven 195cc with 3.7 merc with alpha 1 outdrive.Boat wigh from what ive found is 2600lbs.

Any help with original prop size or tell me if you think it will be ok with the 19 pitch thats on it.also what is max rpm i should be turning this motor at wot.I am pretty sure the motor is a 1988 model as im sure they prob just used whatever new motor they had while making this boat.

Re: 1990 raven 195cc prop question

Mfg recommended WOT MAX RPM for your engine is 4000-4600.
What are you getting with your normal load ,people,fuel,gear,etc ?
Original prop really doesn't matter. What are you going for, max speed, best overall, max hole shot / skier pulling, etc?