[Rare Iron]

I just looked up as much as I could about this on Google & found out some basics, but not the value of it. My bro-in-law has this intake he has had for many years & he had it on a drag boat with a Ford 427. I believe it comes with the carb(s). I have an E-mail back in to him to see if it is a dual quad setup. He said the style of the manifold is where it goes partially under the valve covers.

Anybody know any specifics on this & it's value? He wants to sell it & is trying to determine the value.