have you ever ran one out? How would you know if not? I think engine choices / performance / longeivity are suited to fit a drivers needs / styles, powerbands vary from engine to engine from the little I know that I have learned hands on, they are suited to fit your driving style, I am looking for smooth, I am getting the 06 FR.21, Im curious to see how its powerband is, I hear its smooth with lots on top, I cant wait to find out!! Rocco, are the Nova's smooth curved powerband like a v-spec, or are they real agressive / radical, just curious? When I get a brand new mill, I think im gonna go v-spec and have fantom for a backup, thats nice mill Rocco, post pics when you get it installed bro