'01 Johnson 9.9 to 15 conversion

[Johnson99]

I'm trying to track down the correct carb assembly and/or any information on converting my J10RSIM to a 15hp. My research concludes that all I need is a 15 carb, but if anyone has other or more information on this, I would certainly appreciate it. Thanks!

[boats.net]

The following link is for the 15hp carburetor assembly.

0439129 OMC CARB AY,15HP ROPE $218.67