Do you know the output of your current alternator?
My tbird has a measly 75 amp alternator stock. I plan to do a "3g swap" sometime in the future, to a 130 amp unit from a 90's Ford.
The shadow has a 90 amp unit stock. It doesn't have nearly the electronics in it the Tbird has, ABS, ride control, that kinda stuff.
I'm gonna say an electric fan would definitely help you. A freer flowing exhaust might too. If you reduce the backpressure too much you will move your power band up a bit in the rpm range. Cure that with a turbo though
. I don't know about the lighter flywheel and pullies though.