re the pro turner, yes you can reset the idle along with any other of the electronics on it (my bike does have a different map on it to standard factory one
)
although more expensive than power commander, fuel paks etc, it's superior tuning capabilities mean you should be able to get the engine to run smoothly for tickover to redline
the standard setting is about 950 rpm when warm.
back to the main theme, nothing you do however carb or efi wise will make it sound like the older long stroke motors