if you like fast revving and instant throttle response, then an aluminum flywheel will certainly provide that.
it'll also have you shifting all.the.damn.time if you drive in traffic.
i had a 400hp 318 with a light wheel backed up with a 3.09 1st and 3.55's and 25" tires in a 65 dart. you'd generally be grabbing second on the far side of a big intersection both rpm and near speed limit wise.