Sub-frame to Radiator Support mtg. holes-Front one ever used?

[My68SS]

Thanks for the pic Kurt! Do you have any other pics of it? Were there any differences [hole piercings etc.] between late 69 Camaro and 70 Nova?
Or more  specifically, is there anything to identify this frame from a 70 Nova frame?

[WorkinProgress]

A 1970 Nova would be the same frame as around a mid-August '69 Camaro frame. No different piercings.
The elongated hole on the drivers side is for the vent hose used with the charcoal canister on the Nova.
The sway bar brackets on the late '69 frame are the same as the '70 1/2 Camaro frame. Hole mounting distance is different.

                                                                                                                - Warren