Steel or Aluminum?
I flat out LOVE the aluminum flywheel I have in my Challenger!! It's a 440 OD 4 speed with a 3.23 limited slip.
The way it revs up is awesome, snappy and responsive, like driving a rocketship!!
It does need a little more RPM to get it moving, in my combo I think the slightly deeper first gear of the OD really helps get things spinning.
I couldn't imagine driving that car without one now. Just plain fun!!!
I did have a 440 4sp 3.91 limited slip 1968 Dodge Charger with a steel flywheel so I do have some real world experience.
There isn't really anything wrong with a steel flywheel, but I love the aluminum one in my Challenger.
Your results may vary.