The DCOE 14 are not the best match for a turbo since they have no seals on the shafts as they are very old. They also come with a 30mm venturi (choke) and therefore they are a bit down on the airflow since they were ment to 1.6 old engines.
However I'm looking for one of those pairs for a restoration off one of those "old 1600cc" engines of an Alfa Romeo. If you would be kind enough to give me the contact of the seller I would appreciate very much.
Regards and good luck with the project.
Tomé