aluminum flywheel?

I bought a SFI one for 100 bucks brand new off of Ebay.

Let me debunk some myths through 4 years of experience with having one on my old car: No clutch chatter, no warping, no idle issues with a 'big' cam, no probems at all. It may feel a little different at first but you'll get used to it quickly. Like I said, I would not pull the car apart JUST to change a flywheel, but if you don't mind spending the cash and need to change the clutch go for it. If money is an issue, keep the stock one.