IPhone - Facebook contacts sync?

When I log into Facebook in the Settings and tryna sync my contacts, only 20 of my friends appear in the Contacts app. Why? What should I do to work properly?

You should only get friends who actually put in contact info AND have made it visible to others. Unless you have 2k friends, then something is wrong.

Probably Those Are The Only People That Have Shared There Info A Lot Of People Set There Info To Private Facebook Can't Import Info That Is Set On Private Your Facebook Contacts Sync Is Working Properly