I have a 29 w/ twin 350's and currently pushing 23 Mirage and I am quite pleased with the speed and hole shot,, Question is I would like to try a set of four blades , but don't know what size to go with I'm thinking maybe 24's ?????

need some more info..just sold mine and i was hittin 5100 rpms @wot and on a GPS got 68.6 mph with the same props.

Bern I am pleased with speed just looking for better handling,
@WOT i'm 5100 69mph but it feels a little twitchy up on plane
plus you seem to have to trim out of site to get there. And as hoping 4 blades would help at the dock.

Go with merc Rev 4 23 pitch 4 blade props. you will love the bottom and midrange cruse.

My bud runs mirage plus 23's on a 96 re rigged with 350 mpi's and bravos , quite a bit faster , 71-72 on the gps. My 94 does handle better with the alphas and carb mags. though not as fast. That thing just gets squirrely at like 70.