[msmaron]

Originally Posted by DougVieyra

While you may have original manifolds, you do not have an original manifold heater cover. You have a reproduction. You may have heard that some reproduction products do not always conform to the original's specs.
However, you should be able to 'tweek' the heater cover by shaving a little off of the matting surface to the manifold. It should only take a minimal amount of material removal to make the angle of the cover achieve a better fit.

Doug that was my initial thought on this was a bit of grinding. Thank you.