I would be surprised if it fits under a stock hood with a 440. I have the same problem on my 63 as I run the Indy dual plane and would like to try a single plane one day. I think the only two that will fit are the Holley SD and the Mopar 337 intake. I want to try the Mopar 337 one day as I hear its a very good single plane and it may fit under your hood also. Good luck , Ron