would like some information on properly trimming engines and planes for top speed on 34 Sleekcraft Heritage,

Call CMS they might have retained someone from Sleek who knows.

I case you're not familiar with that hull, it was designed by either Don Aronow or someone who worked for him. The only one I ever saw tested had 496HOs and ran 0-60 in a little over 10sec and WOT was 74, so it is a very fast boat for that power(or any power).