We had the same problem with a 42 Lightning, drove us crazy. Every time you washed the boat or let it sit there was water in the cabin (sometimes 5-6 gallons)
It turned out that the cockpit drains were clogged and the water had no place to go but forward. They usually drain to the engine compartment, if this is clogged they end up draining forward. Try snaking out the drains all the way through the engine comp bulkhead. A little problem like that will drive you nuts.

Cheers,

Andy

That is a good idea.. That could do it too... If ya checked everything else might as well check that too.. J

As stated before, I too have experienced water coming into the cabin through the cleats. Fixed this on my own.

Also, a good friend of mine has a '01, 32 Fever w/502's. He kept getting water under his cabin step along with wet carpet. Turns out a boot was leaking on one of the drives which allowed water to fill the bilge. Everything was fine until he would put the boat on his dock lift which would level the boat out, which made all the water go forward to that area.

Hope you find your water issue with yours.