Ported 906 heads

Strange.
Well ported cast iron heads have been around that price range for 50 years..
If where to ask me how much it would cost you to do a set of 2.02 360 heads flowing around 250-260 CFM... I would tell you...around a thousand bucks.

Anything else out there that's ready to run 4 Less technically is not a good head out of the box. Speedmaster aluminum heads are not good heads out of the box....they flow like stock until .400 lift...they kinda suck.
This slant 6 closed chamber head I have......I have about penny for penny 1500 bucks in it. Cast iron is expensive to work. It always has been. Jerry said this was his last one, too. lol