Dakota manifolds for A body

I am considering installing Dakota 5.9 liter exsaust manifolds on my 1972 duster with a 360.My buddy says they work good,but im skeptical until I here your thoughts here.Im not worried about stock look, only fit and function.What is the best year dakota 5.9 liter manifolds to buy for this swap?

Installing Exhaust Headers Into 300hp Crate Engine - Mopar Muscle Magazine