Zac, thats a pretty rare intake. Thats a Weiand two piece individual runner air gap tunnel ram. They only made a hand full of them. I'm guessing they're about 20-25 years old. It looks to me to be a short deck, but email the seller to be sure. I have the same intake, but for a small block, and with 2 fours instead of the 6-71 plate. I got mine about six years ago and have only seen one for sale since-
