Originally Posted by
3alarmer
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...if you really have to have indexed shifting (that works well) on an 80's Italian bike, the indexing stuff that worked in the 80's was Shimano. I think this has already been hinted at, but permit me to say it plainly. Campagnolo took a while to produce a solid indexed shifting system. A while meaning in this context many years. I second the above idea to just get yourself some really nice smooth friction DT shifters as the most rational upgrade.
I don't know when Campagnolo brought out indexing, at what level, and how long it took to trickle it down, but we have a bike that had was built new with full Mirage 3X8 Ergopower-based system, and it works perfectly if you don't mind a bit of audible announcement that a shift has been completed.