Modelo 800
Just change parts over to an all alloy gruppo. I.e., put on an old Campy Triomphe/Tipo gruppo, or Shimano 105 or Gipiemme or Ofmega gruppo.
If you really want to improve the weight and look, look for a pair of chromed Benotto forks on eBay that came from a Modelo 2000. (they'll pop-up about every 6 months or so...)
Did this with a Modelo 800 once - took off a 1/4 lb. and made the Hi-Ten bike look like something more until seen up close.
You can get this bike down to 22.0 lbs if you go all alloy gruppo and put on Modelo 2000 forks.
Saddle, fork and BB are a dead giveaway that you have a Modelo 800.
=8-)