1. 

   pmuller9 Well-Known Member

   Are all 350 cast iron exhaust manifolds the same or are there some that would perform better than others?
   
   Paul

    

   pmuller9, Oct 3, 2012

   #1
2. 

   NickEv Well-Known Member

   Later models have larger outlets
   Oh and they all flow terrible lol
   Good Luck

    

   NickEv, Oct 3, 2012

   #2

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