I changed my 5 hole wheels to Tecnicos today ( plus new Michelin Super Sports tires) I called Alfa customer care and was told 89 pounds. So about the same as everyone else came back with. When I went to take the original wheels off they seemed very lightly torqued at the factory. I have 2800 miles on the car. Oh- The Pirelli Corsas are in great shape, just prefer the Michelins and here in Florida I needed better tires to handle the rain.Just checked mine, 90FT lbs on my Snap On 1/2"
All were loose, like 1/4 turn to get it to torque value loose. 900 miles on car.
Check them while you can.