Budman, I really don't think you can get a true reading of what your engine is doing on that engine stand. I also can over think just about anything so I feel your pain!

I'd ditch the silent choice diverters and get the right collector setup going on them.

If money is a concern along with noise , you can temporarily make some home made turn downs for the exhaust at the back of the boat. I think your pissingg right into the wind with that exhaust setup you have there. It's not the cam.

Budman, have you considered taking up golf?! :evilb:

budman,maybe you should try sailboating,no engine problems,lol.

Mike their would be a 38 page thread over on sailboathomos.net asking about the proper teak oil for his cabin hatch lid

sailboathomos.net.:party-smiley-004:

back from the dead........this is basically what I had to say in my 2 paragraph delete. Dump water into pipes just before transom and add mufflers switchable or not to the outside of transom= no more concerns except for future leaks with the headers......but thats a 300 page thread by itself.

Brian you know, according to the Catholic belief, if you take your own life , you go to hell. What's hell like? I can imagine thousands of budmans running around, tapping you on the head asking you rapid fire engine questions for all of eternity!

Stainless Marine + switchable mufflers.

What's hell like? That's easy.......running a boat repair business from April to mid September in Michigan, the rest of the year is a little less stressful.