Colombo & Bariani have been manufacturing both original equipment and performance camshafts for cars and motorcycles over 60 years.  These 12mm lift camshafts are more aimed at 1750 & 2000 race engines, so are not particularly tractable for road use. Price is per pair.

See the 10.9mm lift C&B cams for 'fast road' 1300 & 1600 engines - available under item code EN076 or the 11.6 mm version for 'fast road' 1750 & 2000 engines under code EN527