Magnum manifolds on 67 Dart?

Hey Brian I haven't tried a set but I have a set and have eyeballed them and they look like they will fit my 68 Cuda so a Dart should be the same. I remember an article a couple yrs. back showing the early magnum manifolds flowing as well as the good 340 manifolds. When I say early I don't remember exactly what yr. they went to the smaller outlet but I think it was 94 or 95. The early ones had a 2-1/4 outlet and the later ones only had a 2" outlet. The later ones of course lost some horsepower. I'm gonna try a set on my 68 Cuda in a couple of months when I get it together for break-in. Hopefully they fit. Good luck with yours.