Usually, if you just add a can, there isn't much need to change the fuel map. If you add a pipe and can, go with the recommendation of the manufacturer. I have an SLP pipe and can on my 700 with a ported engine and SLP recommends going with the Polaris fuel map. Talk to the can manufacturer, they are best at answering this kind of question.
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah