I have 2002 Baja 232 w/ 496 (375hp). Currently @ 26-hours on the engine. The boat came with a Mercury Marine Mirage Plus 23P 3 blade prop and I'm currently getting 67mph (gps) @ 4950rpm with a about 1.5-inches of forward movement left on the throttle. Drive completely trimmed out and just a very little tab, about even with bottom of boat. Manual says max rpm should be 4200 to 4800.
The existing prop is also great for water skiing.
The dealer (BAJA) will give me one chance to swap-out the prop for a bigger prop.
Was looking to try a bigger prop, maybe a 25 or 26 labbed, but was wondering if anybody knows of any place (if any) in the Philadelphia PA area I can go to try different props.

They gave you ONE chance????? to fix something that they should have had right to start with.

BTW a 25" in the same prop will drop the rpm by about 400 and should do the job for you.

Try a 23" Revolution, it will drop 300 RPM from where you are at and should be worth a couple of MPH