Facebook sycn isnt a option! miui 2.3.16 ICS

Are you talking with the application? If you go to Settings -> Accounts / Sync Settings, and click on your Facebook account is there a checkbox for "Sync Contacts"?
The facebook app aint compatible with ics contacts sync. They have to update their app. Some roms do support it, but this is because of a xml hack they put in their Contacts.apk and ContactsProvider.apk.
Ah okey! But when I hade official ICS on my sgs2 facebook sycn worked :(
Also have tried other ICS ports (including samsung official) this is the first time it's not been an option. I don't have sync in the facebook app, and clicking facebook under the sync settings area does nothing.