---

Hi, Mike
I can understand and relate to your desire to put twin 4 strokes on your boat. I changed the size and position of the fuel tank and moved batteries forward in order to allow twins on my 1989 22 Outrage WD.
However, I want to pass along my experiences.

I owned a 1990 17' Outrage for 6 years and a 1992 17' Outrage for 8 years and counting.
My 1990 was powered with a Mercury 115hp 2 stroke and had the same fuel tank you describe above the floor and across the rear of the boat under a deck. The twin batteries were located in the console. I found that boat to be very stern heavy and often ran it with the motor trimmed all the way in to make the boat perform acceptably.

My 1992 is powered with a Mercury 115hp 4 stroke, has an in floor fuel tank and twin batteries in the console. To me this is the perfect balance of weight.

As I said, I understand the need for twins and I agree that you are removing weight from the stern which will undoubtably help, but in my opinion, you are starting with a boat which was stern heavy to begin with. The in floor tank of the post 1991 Outrage goes forward under the console. I think you should consider getting the fuel tank as far forward as possible - not just under the seat.
Good luck with your project.