Max
Basically you're doing the same thing today with EFI only you don't have to pull the air cleaner off, drain the bowl on the carb and frig around with jets, needles, air bleeds etc.
It's all electronic.
You can go to
www.powercommander.com and see if they have a map that is close or e-mail thier tech support and they will tell you which map to run you download it FREEBEE over the internet and upload to the powercommander
The new Powercommanders are USB which is good because you can use a usb cable to hook up and program.
Best bet is to get a custom map done but download first and see how it runs if mileage is bad it's too rich if it's exceptional you're lean.
Then its time to tweak the map and a powercommander tuning center is a good thing.