dutra manifolds vs header

the real kicker is I have a header flange, was just questioning the durability and extra work of the header vs the Dutra's. i dont know that the stock manifold will get me the end result Im looking for, plus I have replaced more than a few cracked stock manifolds. it does give me another option to ponder.

the car will be going multiport injection with coil on plug ignition ( i should have listened to your advice when i was on the fence about TB vs multiport )
could have saved some time and just done it once.