I have a 17 ft, older trihul. The more throttle I give the more the bow
stands up. I was reading recently about planing. Would my boat be
considered a displacement boat? or is it just set up wrong.

The boat has a Volvo 140 i/o with now trim tab. There are some "trim
plates" on the back.

Also, am I missing some "trim" thing on my outdrive? Something like this
http://www.cabelas.com/cabelas/en/te...jpg&hasJS=true

Thanx,
Mike