As for FI:
Roots style - power now, best for moving the heavy ass beast off the line, CARB approved, hardest on the tranny and least overall power potential.
Centrifugal - a little lag, but more potential, a little easier on the tranny but with a boost controller I can have 2 profiles in tune, whiny as fuck.
Turbo - all the benefits of the Centrifugal without the extra load on the engine to power the charger. Most overall power potential. More lag although I am pretty sure I can size on with that engine to bring me way up in power without lag that extends too far.