I just recently purchased a 2004 Chaparral Sunesta 236 deckboat from Texas & brought it up to Wyoming. There is a difference of about 3800' in elevation, & I knew that I would have to re-prop to compensate for the elevation difference. Boat has a 300hp 350 Mag MPI with a Bravo 3 outdrive with a 26p prop. Got a chance to take the boat out for the first time today & at WOT I was reading 4000 rpm at 40 mph & it took about 10 seconds to plane. Any suggestions on what I should down-prop to? I was thinking a 24p, but not sure if i would need to go down to a 22p?? Was also wondering if changing out a dual prop can be done by a "novice" person like myself. Any help is greatly appreciated!
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