I like Qjets, too, but the use of an adapter to a square pattern manifold is not as good a low speed adaptation as a square carb onto a spread bore manifold, because the secondaries get restricted by the adapter. If you don't need that last 1000rpm of engine range all that much, it will still work.

My ideal manifold would be a spreadbore to accomodate the Q-Jet. However Offenhauser stopped making spread bore dual planes. I used a square bore manifold and bored the secondaries and primaries in the manifold to match a spreadbore carb, and made my own adapter. No one makes exactly what I needed so I made it my self... Here's sopme pics.


Sorry for the image size. I used a ball end mill to get the primaries to blend and a regular boring head for the secondaries. I used a piece of 1/2 alum. plate for the adapter. The manifold had plenty of material and bored fairly easily. I used a two-flute end mill to cut the perimeter of the adapter. One of these days I'll get a grinder to it and make it look pretty...

Where there is a will to do a thing there is usually a way! And you have the proof. Good job!
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />