Hdy Clutch Master firewall bracket issues

[68454RS]

68 Camaro. I received a bracket that sits flush against the firewall and not bent out like the McCloud bracket. However, It does not fit. I trimmed away some of the bracket and stopped before I went too far, still doesn't fit.
I made a template of my firewall and overlayed it on the bracket and you can see how much difference there is. I was told my 68 Camaro holes are not where they're supposed to be. How can that be? Do I not have a 68 Camaro firewall?

20220122_135709 by F G, on Flickr

20220201_210812 by F G, on Flickr

20220201_210945 (1) by F G, on Flickr

20220201_211241 by F G, on Flickr