Disappointed magnum head flow numbers....

Nowadays i think the only reason to do extensive port work on iron heads is "stock" class requirements. I'm talking about the uncommon stuff like 427 hi rise FE heads, "W" heads, "T/A" heads etc. I knew a family when I was a kid who raced nothing but 66/67 fairlane wagons with 427 FE's. They buy anything of that flavor for good money, cracked or not.

You'll never get enough metal our of the way at a "reasonable" cost to make it worth it in my opinion. When you get get a set of TF's for the price they are.... it's almost a no brainer. The cost of an extensive port job adds up really quick as I understand it. Those folks don't work cheap.