Ebay it. You will get the highest dollar for it there. Put a $ 25 starting bid on it, set your reserve at the least you are willing to take, make the title something like " RARE EDELBROCK SCRIPT TUNNEL RAM INTAKE/CHEVY SB/HOT RAT ROD" and the market will decide what it is worth. Post lots of pictures on Ebay.

Either you will hit your reserve, and probably go over it, or it won't, and then you will know what people are willing to pay.

If you don't want to sell it, but just want a value on it, set your reserve at $1500 and see how high it goes.

It is a really cool looking intake, especially with the Edelbrock script and detail work. Looks old timey.

Don