After getting my motor back in and putting everything back together, i realized the exhaust manifold doesn't go to the head thats on the motor. I got a 86 4x4 witht he 22r. In between the 2nd and 3rd port on the manifold there are two holes that are supposed to lead to threaded holes on the head, but my head has one hole in the middle thats dumping exhaust out. Does my truck have a 20r head? What kind of manifold only has the hole in the center?

that is #2 and #3 plugs in the pic