340 T/A (U code) head value? (Pics)

I have been looking for TA rockers that are not bank account breakers but you know Mopar people....it's gold.
I know every head and flow bench is different but I am at 298cfm at .600 lift. That is better than any head I have ever flowed. I have no doubt these heads were built by a Pro Shop. The rocker pedestals have been machined. The Intake manifold bolt holes have been re located to accept a large port Mopar M1 W5 Manifold also. I have been unable to find the shop. I was "told" the heads came out of Florida on a SS Duster. Every port is numbered and both heads are number stamped, I would love to find that shop....CTA 25, CTA 26...