Newish owner here with approximately 30 hrs experience with a 1995 xb2003/1995 225 promax efi with a fresh rebuild. A 25 trophy plus, 9" plate and 1/4" below pad
Last year after the motor was broken in I had a hard time between 60 and 70 then it moved on up to 70 to 80.0. I ran 84 for a second at about 7200 rpm's with a lot of trim left.
I now have a 28 trophy on the boat and finally got 81 mph yesterday, 5900 rpm and little to no trim. I believe this is about the max for this set up unless I had a 10 mile stretch of good water to run in.
I'm looking forward to trying out my 27 trophy plus I think it will be the ticket.