Clutch Installation question

I am replacing the clutch on my 73 with a 350 and a Muncie 4 speed. In reading the shop manual, it talks about aligning the x's. In looking at my flywheel I don't see any X. It's not numbers matching and I don't know if the engine came from another Vette or not.
Am I looking in the wrong spot? Aside from the normal top/bottom orientation, does it matter? (I'm installing a Centerforce DF)



