I put them in the carbed 1750 in my Giulia Super. They're better in every way. Not a huge performance increase, but a noticeable increase in low and mid range torque, and they rev better too. Really perks up the engine. They're not high rpm cams, but with the stock rev range, they're better than US cams.
I put the same cams in my GTV and Berlina, both with Spica, and the story's pretty much the same there too. No downside at all really.