The deadrise is 14 degrees (they didn't add deadrise in the brochure until the next year I believe).. and I asked the same questions and they didn't add the weight of the engines
My 1998 2520 is supposed to be 14 but it measures at 12 degrees. You can download the installation app from Gemeco, it has an angle measure tool using your phone! iNstall - Apps on Google Play