I am under the impression that for every pound of rotational weight that is reduced, there is an increase of 2.7 HP. Is my assumption correct?
So, a crank pulley (underdrive and lightened) is worth 5 horses, fine.
I feel that the sheer weight reduction of a Fidanza flywheel should be worth 15 horses.
Am I off-base here?

96 GL-Sport 2.0L, MTX Bernardo Bourges' CTA CAI, Dmitri's SVT E0s rims, 205/55R-16, Dunlop SPs.