opening a huge can of worms here but losing 2 lbs isnt the only advantage you'll gain by switching from a 20 yo steel frame to a modern carbon machine. CF technology has come a long way in that time and the price has decreased greatly. IMO CF frames ride, and transfer power better than a flexy steel steed, thus making you a more efficient cyclist.
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2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
2000 litespeed Unicoi Ti, XTR,XT, Campy crank, time atac, carbon forks