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1984 Ciocc bought while stationed in Germany. came with tubular rims (which I still have and use), non-indexed Shimano gear. Was upgraded to 105 gear in late '80s. Just this past week, I removed the UG cassettes and hub and uograde to HG, allowing me to a full range of gear options. Installed a 12-28 cassette. Two years ago, upgraded biopaced crank and chain rings to FSA 34/50T compact crank. I don't need more gears, just lower gears.
A future upgrade will be a 10 speed 105 RD and 14-32T cassette, but retaining the 7 speed system.