That pic of the BB is of Indy heads, which use heavily offset intake rockers.
The factory BB rockers have a slight offset, which is there to allow the pushrods to be straight up and down.
Additionally, in that pic, the exhaust rockers are in the wrong positions. They would normally be swapped left to right so that the ex pushrods would be straight up and down.
The adjuster screws should end up next to each other.
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