This is Greg Gordon's GTV6/Milano 75 performance guide. It contains info on what I have found works, and what doesn't. It also includes the Autodelta instructions for building a 200hp 2.5L Busso V6
This article is way over due. It's time to clear up some of the mysteries about the Giubos, Driveshaft, and Clutch. Caution, this page deals with a lot of grey areas of Alfa Romeo GTV6 and Milano 75 mechanicals.
This very helpful tech articles covers torsion bar removal & installation, ride height adjustment, and rear spring replacement on the Alfa Romeo V6 transaxle platform (GTV6 and Milano 75).