For some reason 325hp sticks in my head based on a post dan made about the box on jerzdunz fb group.
The easy route is to rebuild the zx12r for a direct bolt on hut I think in the end you'll be happier with a boosted busa. Correction, the easiest route is to buy the new 300 hp kawi h2 krx

but that far far from the cheapest and doesn't look as good as your rail
