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Thanks for the reply @BillK2632. The My 4.3 MPI is a 180HP and i'm running a 3 blade prop. It has plenty of power out of the hole and It hits about 40mph at 3400 RPM, the fact that I'm not hitting the max RPM at WOT concerns me. I am certainly going to get it checked out before I start...

Hi all, I'm new here. I just purchased a 2017 Sea Ray SPX 190 I/O with a 180hp 4.3L MPI. We are really enjoying it. I have noticed that I am not able to reach the max RPMs at WOT. I can only get hit about 3200-3400 and according to the manual should be at 4400-4800. I am running a 3 blade...