CNC Ported Heads for 318 Poly?

Those flow numbers are with 1.94" intake and 1.625" exhaust valves at 28", easily 500+ hp with good parts and quality machining, especially with the combustion chamber designed the way it was. Those heads were decades ahead of their time, SB2 heads and most Nascar heads were copied from them in some way/form not that long ago. It's a shame they never caught on as a performance head.