AFAIK Delfina's connection to the clockport is exactly the oposite as it's on the Subway (this is also shown on A603 memory upgrade of A600).
You can check in Individual Computer's website an archive which contains all the pics of how the Delfina is connected to a lot of cards (not on 1200 clockport header though).
Since you connected it the wrong way (I really hope you didn't fry Delfina)... the correct one is certainly the other way around. (This ofc if you remember how you connected it in the first place)
