400 into 65 valiant

I should clarify- im using the ‘65 only big block 727 and the stock floor cable shift, and my goal was to have a taller intake with nitrous plate under the flat hood. Plus there’s some other tricks being built into it. But all that being said- a big block doesn’t fit easily- at least not in ready to run form. Mounts are the easy part. Floor, trans mount, and exhaust are the sticky spots.