Tried a quick search- no luck: Does weight of wheels really make much of a difference?

If you are running a moderately powered car on the street you probably wont notice . But if you are racing a high horse car and counting 100ths of a second it really does make a difference.
BTW...alloy wheels are not always lighter than steelies... pick up an old Keystone classic sometime. Ufda!!!! thats a heavy wheel!