Bianchi never kept good record of their serial numbers and I can't tell the year from them. from your basic description I am going to guess '87 or '88. can you post a pic?
is there a line runnig through the 'Bianchi' decal or is it the calssic 'flag' style? are the Suntour derailleurs Cyclone, Sprint or Quattro?
the frame materiael is Formula 2 with a green Columbus decal yes?
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk