So, in your marine world, everyone uses the same prop, boats at the same altitude, and has the same amount of load on the boat all the time, so having a 3-dimensional spark table getting input from a knock sensor that adjusts for load, altitude, and fuel octane has "no difference whatsoever" than an RPM-only based spark table? And in your marine world, carburetors stay in tune indefinitely, deliver the same amount of fuel with every bit of the same amount of fine mist atomization as fuel injection, and the effects of fuel condensation on the cooler interior walls of the intake manifold have no effect versus having a fuel injector mounted right above the intake port where there is far less condensation issues? And in your marine world, the only reason that every marine engine manufacturer has switched to fuel injection is because it is not as good as a carburetor? Gotcha.
Do I understand how easy it is to tune something like that? Well, Ric, I'll tell you. What were you doing in 1999? Chasing little girls around your junior high school? While you were doing that, I was working and studying along with many of the "great" early "ECM hackers" of the day. I've contributed to the disassembly and table discovery of the 1226026 and 1227747 GM ECMs that so many people use to add fuel injection. I've erased and re-burned more UVEPROMs than I can shake a stick at. I've tuned so many different iterations of calibrations on different folk's GMECMs I can't remember half of them. I've converted from carburetor to FI on so many engines that I can tell you one thing unequivocally; in every installation, one thing was evident. A very noticeable increase in performance all around. So, Mr. Ric, you can keep your vapor-locking, hard starting, inefficient, compromise-tuned carburetor and I'll keep what all the manufacturers have switched to, even though they are the stupid ones and you're the one that knows best. XOXO, brotha.