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    1. #1
      Join Date
      Aug 2017
      Location
      San Antonio TX
      Posts
      1
      Country Flag: United States

      Cast Iron manifold performance?

      So I'm intentionally building an old-school low-tech car, and I have settled on using cast iron exhaust manifolds. It will be a roller hydraulic cam (late ish model) small block Ford with either Scott Drake or late-model Mustang manifolds. Anyone got an idea which would flow better? I'm also not against having them internally ported...




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