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Smitty75 - I've had my old 292 2.055/1.60 sitting in the boxes back from being refreshed with pc seals new bronse guides and 135# closed 1.46 diameter springs for 3 years and just sold them to a friend doing a 406 buildup in his Chevy Blazer.
I bought them bare casting many years ago for $500 and had everything done to them. For a total of $1200. They would compete with something like ported Sportsman II's with larger 2.055/1.60.
I hope that you find some. Mine came with the ACC holes and no Cross over. Very large D shaped exhaust ports. i ran them for years on my Vette.