I apologize for my long absence - as we often say here, life gets in the way: since my original post, my car club hosted a regional meet, my wife and I went camping on the beach, and we ran a half marathon. I have been following this thread, but not commenting.
In my original post I did mention that the setup I am interested in would use vertically oriented, Holley or Autolite carbs. The side draft Webers are sexy, but I think I might have to cut the shock tower for clearance to run those (and possibly install a Mustang II suspension), and I’m not ready to consider that yet, although I do have the Lynx side draft intake manifold. Also, I have some experience tuning Holley 2-Vs but not Webers.
I should have been more specific in my post. While an Offy-type setup with a modified log and three 2-Vs would be great for fuel distribution, I want to take advantage of the larger ports and valves and higher flow that my AL head offers. Chad, the photo on page 5 of the image gallery is of three 1-Vs on a log intake, if I am not mistaken:
The closest I've seen in this thread to what I had in mind is the photo below:
However, I am convinced that an intake with a plenum would be much safer: with an IR (independent runner) type manifold, if one of the 2-V carbs developed a fuel delivery problem, such as a clogged fuel filter or a stuck needle valve, the two cylinders fed by that 2-V carb could run very lean, possibly with severe engine damage. A plenum would lessen the impact of such an event. Please correct me if I am thinking wrong.
Another photo in this thread is the photo below, which is apparently of a custom intake fabricated for an Argentine head:
I realize this specific custom intake would not work for a CI AL head; but something similar could be made for that head. If there really isn't enough space for three 2-Vs (theoretically best), maybe there would be enough space for two 2-Vs. With equal-length runners from the plenum to the head, this would still give better fuel distribution than the CI intake.
To summarize, I am interested in a plenum intake for three vertically oriented, Holley or Autolite (but most probably Holley, since they are available new: I could order three identical new Holley 2-V carbs whenever I am ready) 2-V carbs that fits the AL head. As far as crowding issues, would setting up the carbs with manual chokes, or no chokes at all relieve some of the crowding?
Thanks,
Bob