Recently bought an '07 1800 SR3. Been in process of shaking it out. Was surprised to find it so slow to plane off with the 4.3 V6. Went with a 4 blade 19p prop instead of the 3 blade 21p.
Made a real difference, had 4 people out with full compliment of stuff and she was so much easier out of the hole, and quicker to plane. Still think ultimately a dolphin plate will be needed as well, or tabs, but at least now I can wait for that. Didn't fully air it out with others on board, so not quite sure where it will max out on rpm. But I was surprised how slow she was for a boat with that much power, I think it was way over-prop'd. Is 21p the factory standard?
Anyone with similar exp.?