ARE YOU SERIOUS DUDE!? Put the crack pipe down!!

When I got my Dart and had the first thought of putting a 440 in it, I looked into these manifolds. Right away I knew I'd be wasting my money as my car is a 270 that will be a what if car when I get around to doing any work to it. I got some used tti headers and I'm fine with that. I don't have the pockets for an M code clone, and I'd hate to use some rare parts for a car that never came with them.