Tilt/Trim/ opinions wanted...

I have an issue with my V20 where she wants to go slow or fast. When tooling along with little or no wake, she's fine. I push the throttles forward a little and the bow goes up. (engine trimmed fully down). I push the throttles a little more and she wants to take off like a rocket. I back off, and the stern drops back in the water again. 1800 rpm is about as fast an I want to go while displacing the water and 3000 rpm is about as slow as I can go and keep her on a plane. I'd like to be able to use that middle range (like for pulling a skier.)

Yesterday evening I took the extended family (8 people in a V20 :o) out for a day cruise and we ended up pulling up dockside to a resuarant on Clear Lake (by Galveston Bay for ya'll up North). We had a table on the deck with a perfect profile view of my V20 ;D. When she sets there with the engines trimmed dawn all the way, they are perfectly vertical. Shouldn't they by tucked under a little to push the bow down?

I can machine a (?) degree angle to the spacer between the jack plate and engine, but I really do not want to go to that hassle and there is the possability that it could confound the mounting geometry. Bit I'll do thatif that's the answer. Another, and right now, more attractive remedy, might be trim tabs. I've also thought about a dolefin on each engine, but I've never seen them on a boat with twins.

Thoughts? Opinions? Experiences?

Pic of boat...



Thanks Ya'll

Havis