My 1998 Baja 24 Outlaw is impossible to get on plane with four passengers unless we move everyone to front of cockpit and even that takes a while. It’s running a 3 blade 23 pitch prop. I’m thinking of switch to 4 blade 22 pitch bravo 1 prop.

What's your max speed/rpm at wot? Is the prop blowing out when trying to plane or is it hard to gain rpm? I had issues with 23's on mine blowing out when planing, switched to 22p Bravo's and problem solved, but can turn both size props to 5k rpms at wot. Mines a 302, but theory is the same.

Max speed at WOT is 50 mph at 4500. Prop is not blowing out and rpms not a problem.

Even when I pin the throttle trying to get on plane, the rpms will jump to 4500 but the bow doesn't come down.

What engine & model of prop do you have? You may gain a few rpms going to the 22p bravo, should hookup and jump on plane a lot easier, top speed may suffer a few mph.

The Baja has the 454 Mercury Mag with Mercury mirage 3 blade 23 pitch.

My guess is you should be closer to 4800 max rpm
so maybe 1 pitch lower could help reach that
but!
i am surprised it does not come on plane easier even with a 23...
did you check your drive ratio? What is it? If you have a 1.36 that would or could be the problem
or
did you check engine compression?

I agree, something doesn't seem right. You should be seeing at least 60mph with your setup.

Stock prop ? Labbed ? Do not know ?
Which motor ? Stock or modded ?

1st boat ?

I know, the engine just screams at 4500 rpm with the bow doing a wheelie all the way down the lake. Tried all kinds of trim tab techniques and engine trim at all different rpms with throttle up and down. No other real big issues getting on plane when it's me and one other passenger.

No clue if this is the stock prop, however the old owner gave me a 3 blade 21 pitch as a backup. I'm thinking of trying this one before pulling the trigger on a 4 blade. This is the 454 Mercury Mag motor.

This is not my first boat and I also own a 2018 Scarab jet boat.