Mark Steffes ( I think I spelt that correctly) has basically the same setup, The boat huals [censored] I think he has the carb’ed version. I have a 200 vmax ox66 on my boat, and from everything I read they are a bullet proof as you can get in a outboard. The only consideration being that you should always run ringfree or seafoam in you gas to keep the O2 sensor from carboning up and messing the proformance up, they can be cleaned, but they can also get too dirty to fix, and need replacement, Yamaha wants a couple hundred dollars to replace one, seems pretty much any 2 wire 02 sensor will work, so guys on another board put a 02 sensor in from a chevy pickup, had to splice the wires in, but it only set them back $40.