What About Edelbrock 340 Heads?

None that I have ever seen.
It’s just all the new heads after the W2 are aluminum for what I stated and we all know.
That and the aluminum can run a higher compression level with 93 octane where iron doesn’t.

Years back, hot rod, car craft, I forget, did a test between the aluminum and iron heDs and found zero difference. Two heads, same design, 1 iron, 1 aluminum, same power output.

There was a discussion here sometime back on that.