If it has a thunderbolt ignition system there should be a main harness running into the back starboard side of the engine with a hose clamp around the connection. Take that connection loose and visually inspect it. We lost 2 days of vacation with an old boat because that connection was loose...
I have an 01 with 4.3 EFIs and had the same problem my first year at Norris. I found that if you run the blower all the time it helps out. Also let the engines idle for several minutes after a long run to allow the water to circulate and cool off the manifolds. The cool fuel design is not great...
I trailer my sundancer 280 on a triple axle aluminum trailer. It also has an arch and is over 12 feet tall on the trailer. I am shocked that a tundra was able to haul it.. must not have been on any hills. I use a dodge ram diesel to pull mine.
For anyone with a dirty glomex antenna- I called Glomex because the antenna stopped working. In the early years (my boat is a 2001) they had problems with the finish. They will warranty the antenna and send you a brand new one (the new model shark fin design that is tuned for digital) for free...