Hi
i just bought a 1997 dominator whitout step with fresh hp500, what prop should i run with this setup ?? I have a set of revolution 4 blades 25 pitch i think is à little low in pitch.

When you say fresh HP500, I assume you mean twins? I think the factory put Bravo 1 4 blade 30s on twins. The Rev 4s are smaller in diameter than a B1s. My guess is you will be under propped. You can always call the factory and they will confirm what they suggest running. Pretty sure it won't be those Rev 4s.