Today, dollar for dollar, is the 318 faster than the 340 ???

...No doubt about it, The newer engines are better designed, machined, burn cleaner, wear less
and comparatively make more power. You young guys are lucky because you can install and enjoy
them.I do to a point and appreciate any well done build.
But...i am an older member and could never put one of those beer barrel things in my Dart
I only drive it occasionally and doubt if the stock 340 will wear out any time soon.I don't
race and it's fast enough to be fun!
You already have what many want. A 340. Rarely does the "beer barrel" air intake get used. Most just bolt on a intake and carb and roll with it. And yes, the Magnum's do have advantages!