How does a W2 head oil the rockers/valve train?

O.K, So I went and looked at a pair of X heads I have on the bench.
Out of the five pedestals there is only one oil supply hole for the rocker arm shaft. pedestal #2. Second from the back on the right (Pass) side and second from the front on the left (drivers) side. the supply hole is not drilled straight through like I thought, it looks to be drilled half way through from each side of the head at about a 30° angle to each other.
Oh and I found my receipt when they (M&M cylinder Heads) built the motor, looks like I have Fel-Pro 1008 head gaskets.