Wayne.  While I’ve run the stock dual quad setups on the dyno, I’ve done no comparison testing between manifolds.  I’m currently collecting a variety of dual quad manifolds for an extensive test in the Spring.  Getting good working and matching carbs are the real issue but slowly getting there.

Once you get to that point of testing readyness,contact me and I will send a few of the dual quad intakes and carb setups if you like. 

Oldmics

Wayne.  There are no plans to do any air flow tests on the 2X4 intakes.  The intakes would have to be sent out for this to happen and that’s a cost factor that’s not being considered for this test.  While air flow numbers might give a small bit of additional information when put against the dyno values, by themselves they will not mean much other than insuring that the intake manifold flows at least as much as the heads they are being used on.  In the end, it’s more about quality of flow rather than quanity of flow.