B-Body HP manifold on 440 Dart?

Very nice looking setup,,, clean and mean… what year of dart and what engine / manifold combo ?
Actually a 68 Valiant. That was the first engine. Closed chambered 516 heads hyd Comp cam .525 lift RPM manifold. Ran low 12s in street trim. Changed to RPM heads, 590 mech cam and Proparts headers. Went low 11s in street trim (complete exhaust and interior)

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