intake/exhaust mounting, what am I missing?

Chrysler made a egr block off plate for the slant six intake manifold.
It was a 2 hole plate used along with a egr gasket to replace the egr valve.
Block off plate part number was 3671447.
That number was discontinued by Chrysler many years ago.
The upper 3rd hole in the intake manifold was for a return spring attached to a metal strap.
It was often discarded when the intake manifold was removed from original engine.
It can be seen in the 4th photo from the top in this older thread.

https://www.forabodiesonly.com/mopa...-intake-manifold-w-carburetor-exhaust.511678/