Wich impeller is better for this boat?/

[86 catalina]

I have a few diff inpellers at my house but dont know shit about them what size is good for this boat??I am just finishing building a 550 horsepower roller 496 for her too>>please help

[sleekcrafter]

For a decent hole shot or getting on plane, I would not go any smaller than an A impeller.
Sleek

[Duane HTP]

If you're wanting to go cruising and skiing, put a AA in it. If you want the best of both worlds, put a B in it along with an inducer impeller.
The A reccommended above is right in between, and will work well to.