1985 v20 cc new owner questions

[bkurtz5001]

I am a proud, recently new, owner of a 85 v20 cc. It is in rather good condition overall. She is equiped with a sterndrive 2001 200 mercury saltwater. She was converted from a I/O and alot of concerns are in this are. There is some noticable flex in choppy conditions coming from the top shell and outside of transom but everything seems solid. I was wondering if i should look into this sea cast stuff but then i didnt know how i would go about doing it to an I/O transom.

Next, the boats top speed is ridiculous. According to my gps im lookin at 53-55 with two people and no equipment. Is this sane?

last but not least, the bracket the motor mounts to also has a plate that adjust vertically up and down. Im not so sure it is adjusted right either because the motor seems to "bob" in rough waters but its not due to the transom because i can see the bracket moving slightly. And its tight as can be.

Alot of questions i know but i was just curious, didnt know if these are typical things someone here has had experience with. Or maybe there is somone local who wouldnt mind a boat ride, or fishing trip while we talked some V20.

Thanks ahead of time and sorry again about the long post.

Ben
poquoson, Va