A 1974 Duster - My 2nd one, 41 years later!
So with intake installed, on to the valve covers. They won't fit without a slight modification. I also used FelPro #1646 double thick valve cover gaskets to help with this clearance issue. Both gaskets and valve covers were slightly notched to clear the intake runners.
IMG_0371 by Alexl5280, on Flickr
IMG_0372 by Alexl5280, on Flickr
IMG_0370 by Alexl5280, on Flickr
So with intake installed, on to the valve covers. They won't fit without a slight modification. I also used FelPro #1646 double thick valve cover gaskets to help with this clearance issue. Both gaskets and valve covers were slightly notched to clear the intake runners.