turbocharged small block duster

Well, you don't have many options other than build your own headers and exhaust, or use a set of magnum manifolds, swap them from side to side and then build off of that. In an a-body, If you go the magnum route, you cannot use a power steering box and a manual box is tight and will likely require raising the engine or shaving the manifold.

What exhaust did you use on your old turbocharger system?