the operative term here is "guess" . you can spend your money guessing
or
you can spend your money knowing.

your choice

I had it out yesterday for a good while finally no rain but anyhow the boat runs pretty darn good I might need to jet the carb but I tunned on her a little she runs 53-5400 rpm the boat is runnig 71mph on gps. That was with full load of fuel 2 cases of beverage and 3 people

so.. what changed from the start of this thread until now ?

timing set at 12 degrees and thottle cable adjustment