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  1. BLUPORT

    383 Exhaust Manifold Question

    Then I must have a leak elsewhere, and it's gotta go!
  2. BLUPORT

    383 Exhaust Manifold Question

    Updated my OP. 68 is correct. I don't have the casting number on hand. As requested. Circled in red, with yellow arrows pointing to the two nipples... Everyone always wants pictures when I mention nipples... Zoomed
  3. BLUPORT

    383 Exhaust Manifold Question

    On the passenger side manifold, it looks like there are 1 or 2 nipples on the manifold. I'm assuming this is for some type of pre-heating equipment that is no longer on my car? Are these actually holes going into the manifold? I'm asking because I hear a muffled fart noise that sounds a lot like...
  4. BLUPORT

    Cast iron intake/exhaust manifold porting??

    I'm sure there's a purist somewhere that would consider it an option.
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