There are good 80s bikes, and there are not so good 80s bikes. I'm afraid your bike falls into the latter category, but it's fully rideable nonetheless. If I were you I'd sell it (or keep it) and get a top of the line 80s bike. Search out a deal on a super record equipped vintage italian bike, buy it and experience the golden era for real.
One thing I like about the older racing bikes: they're cheap, really cheap. Another thing I like about them is that they're awesome.