Chrsyler 426 ''Keith Black'' Intakes

I have 2 of these intakes and was wondering if they're for fuel injection,will they only fit a 426, how to tell the year they were made,ball park figure on the value.
They look like they have never been used. They do have some dirt dobber stuffing.
Thanks in advance for your time/help.

I think they take 8 Weber carbs.... sexy..........