Nice Malossi intake for Minarelli AM6 and multiple Hondas like NS50 and MB5 as well as Peugeot Malossi MVR cases.
Mounting holes are 61mm wide on center and 40mm wide on center. The holes are slightly slotted so this intake would fit a lot of bikes.
Spigot mount is 35mm ID so will work with
Dellorto PHBH 26-30
Dellorto VHST 26-30
Mikuni VM26
OKO and PWK styles as well.