I have a 89 Baja 250 Sport with a Bravo one drive. Engine is a stock Chevy 454 330 hp. What would be the best prop to use on this set up?

22 pitch Bravo One 4 blade probably.
What is your max rpm at wide open throttle now ?
What prop is on it now ?

I would start with a 19p (3 blade) mirage, the boat may be a little under powred for a 21p. The boat has a very deep drive, if you are more concerned about hole shot vs speed try a 20p bravo (4 blade) prop.

I have a 21 pitch 3 blade apollo

with my 24 i ran a 3 blade 21 pitch 4800 rpm 58mph same motor as you

pantera232 is probably on it. 21P Mirage Plus is where I would start if you didn't know the numbers yet. With out your current numbers it's hard to say. 46-4800 rpm at WOT is where you want to be.

jeffsway, I believe a 22p Bravo 1 is the lowest pitch they make.

maybe a 21 rev 4.

23 Mirage plus

I would for sure talk with BBlades about a REV 4. We put one on a 240 sport and it works great !!!!

Yea, just looked it up, lowest pitch it 22. He will not be able to spool up a 22 bravo. I think a 21p Mirage may work if the boat is light, a 19p would work better if loaded.