the PCV valve gets fitted into the rubber grommet in the flower shaped valve cover twist cap and a 3/8" hose connects the PCV valve to a vacuum source near the carburetor base plate.
the plastic elbow you have in the flower cap goes in the opposite valve cover grommet and is somewhat correct from there except for length if needed
unless DeTomaso swapped the valve covers to position the flower cap to the rear of the engine for easier oil fill and also flipped the PVC and breather hose?
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