Some people have questioned my wot speeds and I was even amazed at the speeds I was getting out of my 1993 20hp 2 stroke mercury on a 1648 flat bottom,I would get near 29mph with over 1000+ lbs of weight in the boat with the standard 13 pitch prop. With just me in the boat I get over 30+ mph. So I just switched out the 20hp carb for a 25hp carb that came off a 1994 merc outboard, I am flabbergasted at how fast this engine is now. I tested it today,I know people will think I'm crazy. Now I'm pushing a 14 pitch aluminum solas prop ,with the same weight over 1000+lbs I'm getting at the highest wot speed 32.7mph with 2 separate gps's. By myself I'm hitting near 35mph,extremely scary fast because it porpoises so bad. This again is with 2 different gps's,even my buddy couldn't believe how fast my boat moves. I just wanted to update my speeds here. I know and understand people will question my speeds as I did myself as well, but after doing it over and over and over I got the same speeds every time. This 1993 engine has so much more power than any other 25hp mercury outboard I have ever run,I can't explain why or how either but I have no complaints, lol. Please chime in if anyone has comments, ty.