fingers crossed will have the marina pull the boat and will look into that...what do you think i should do if that all looks good?

I concur.

If NO new hoses installed then this would not be it, but proper wired hose from drive to seawater pump? Anything other then a wired hose will collapse!

Have you remove the fuel or power steering coolers? Could have tiny rocks/ blockage in these. Power steering is the first to get it, fuel and then oil cooler. I pulled the oil cooler several years ago and found major blockage, thought that all was well, ended up having to go backwards for more cleanout.

IF all of this is clean, how about your block passages? take out the blue plugs and see if water comes out. Actually remore and all plugs to verify water passages are clear! This is especially important if your in sandy/silty waters and a must if you ever beach!

Those are my thoughts on what I have experienced

Here is what he's talking about. This is a pic of the top side (out) of the oil cooler (port side top of the engine) - looking down through the cooler.

The tubes are filled with tiny river pebbles, which then collect sand/silt to form the blockage. I had to use a coat hanger to get it all out. On my p/s cooler, same thing - but had to let it soak overnight to loosen the sand/silt blockages.

Check for restrictions at the oil cooler intake side, I had one do this once and it had broken pieces of and old impeller stuck up against the screen inside of it restricting the water flow. Just a thought, something you might check.

First thing I would do is observe the water intake from the ears. When the pump kicks on you can tell it is sucking the water in. Also observe the exhaus on the two motors and see if they are pumping out the same amount. If too little water is getting through the motor sometimes you will see steam come out of the restricted side. I would also get a laser temp guage to read the temp on the themostat housing and confirm there is a restriction and not something stupid like the sending unit. If you have a restriction afer that you just need to chase it down. Obviously the LU pick up is the first point. Then to the hoses to the raw water pump and the raw water pump and so on. When I had the problem I pulled the hose that came from the raw water pump to the thermostat housing and observed the water pumping out. A good solid steady flow is fine. A slow flow or intermittant flow (start, stop, start, stop . . .) means a problem is occuring between the LU and the thermostat housing. In my case the raw water pump housing had a really small crack in it and was pulling air instead of water.

just got back from the lift...pulled that little hose attachment at the housing....clean as a whistle...i left the drive submerssed so i wasn't fooled with hose pressure...and started her up...wow its pumping alot of water...more than the one that doesn't overheat...so it seems my problem isnt water flow its where its going? still overheating at the thermostat...any idea what to check next

I assume you can recreate the problem at idle or fast idle and it does not only happen while running. If it is a hose collapsing it may not be doing it until the motor is hot so you would have had to bring it up to temp. If you brought it up to temp and it overheated, I would get a laser temp guage, take readings of the good motor in increments ( ie. one minute, 5 minutes, etc. until it reaches temp). Then do the same thing with the other motor to see if one riser/ manifold is hotter than the other and how hot the thermostat housing gets. This will confirm your overheat suspicion (it is not electrical - there is a overheat issue), gives you a comparison (how fast it overheats compared to the other motor) and can tell you if you have one bad riser that could be causing the issue.

have you checked the thermostat, thats what it sounds like to me. im guessing your checked your impellers for water pumps to make sure they havent broken apart. otherwise near the back of the engine look at all the hoses coming in from the drive and make sure they dont look warn.

Have you drained your block? I had a issue with my boat getting warm, since I store it in heated storage over the winter I never drain the engine, mine had alot of sand build up in the block and was restricting flow. I spent two hours back purging the block and problem went away.