Interested in this post and I’m sure I’ve read it can be done somewhere. But perhaps wondering why you wouldn’t go to its full potential and the higher rating of 115hp ? I have the most powerful version of this engine in the 115 form. Almost sure the 75, 90, 100 and 115 are all the same 2.1l engine but just different ecu mapping to allow more rpms and fuelling perhaps? Certainly I know that the 115 version is an incredible engine for power. Undoubtedly puts out more than the claimed 115 for sure.
heard that often. As far as I know, only whipple have a license to map mercruiser ecus perhaps?