There are plenty of guys that make a good converter like Bruce (aka WE4 on this board) or Art Carr. As far as what size injectors would be good for the PT74 turbo I know Pat @ PTE is using the Delphi 84# injectors with his 74 turbo, but I would use the Delphi 95# injectors just in case you ever want to run mid 9's.... BTW, if you don't mind me asking who is building your Stage II motor?