Well, I have to say this, do not waste your money on Aluminum Flywheel or Driveshaft, I picked up 2rwhp and lost some tq. I dumped about 300 on the flywheel and 200 on the driveshaft. I cant really say it rev up faster, it really feels about the same. The dyno sheet below has my car dyno'd with the stock plenum/tb, with the all of the other mods listed in my sig. The next dyno was with my bbk plenum/75mm tb, the Aluminum Flywheel & Driveshaft.
Video link:
Bob's Mustang dyno - Car Videos on StreetFire
Dyno Sheet:
Video link:
Bob's Mustang dyno - Car Videos on StreetFire
Dyno Sheet: