Ordered gryphon and have some Q's

[asphalt-cowboy]

thanks guys if I keep the 89 and change the 87 performance to a tranny tune can I run 87 octane in the 89 performance setting? The only reason I dont want to change to a 91 octane is because 91 is not as available around here, their are some stations that carry it but its always more expensive. And another question when I get my gryphon will I be able to run the canned tunes until I get my custome tunes? Thanks for all the help this is a great forum