I have a 1988 25ft. Chris Craft Cuddy Cabin with a 1999 5.7L mercruiser with an alpha one outdrive. Now here's the problems I've had. I bought the boat last year and found lots of varnish in the gas tank after getting it clean and trying to run it I maxed out at around 3400 RPM. In the off season I did a big once over and found the fuel pump to also be inadequate replaced it and took it out again ran better but still stopped around the 3400-3600 range in RPM's. So I thought maybe timing and tune up would do it. Got into the tune up and did a compression check Found to have 2 cylinders with nothing no compression at all. So here we go take everything off send heads to machine shop I had 2 intake valves that were tulipped. Reasons for tulipping can range from bad gas to wrong prop to many other things. WEll got the boat back together timed tuned up and ready to rool It starts and sounds better thatn ever BUT... took it out and now i'm only getting around 2500 RPM's any ideas? I have no idea how i can pick up compression and a better running motor and still loss power. Oh yeah and it has always ran fine in neutral You can rev it up to whatever but under a load I'm always limited in RPm's Thanks for any ifo or ideas!!! sorry so long 
