Head and cam selection help for 440

You still haven’t answered the question put forth.....
How much more would they have to make to be worth it for you to pull the trigger?

And........Those will require new head bolts, rockers, pushrods.

And the angled plugs may or may not play well with your headers.

As for the heads themselves....... if they’re in you’re budget, they are easily the best bang for the buck.