From the driver's seat looking forward.
Cylinder head bolt at front of head, on the left side of head.
Gasket has a tear drop shaped cut out that connects the oil passage in the block to the head bolt. Oil flows out of the block into the tear drop shaped cut out in the head gasket.
Once the oil is in this cut out, it flows over to the head bolt and upward around the bolt. There is a drilled passage in the head that that connects the head bolt hole to another drilled passage, which matches a passage in the rocker arm pedestal. The rocker arms and rocker shafts are then fed oil.
You always gotta make sure that tear drop shaped cut out is located at the front, left head bolt hole on the block.