Florida, I have run dual quads on an Eldelbrock for 5 years with absolutely no problems. I do not have anyway near Teds experience but do have some multi carb time. I've have always ran progressive linkage and for me found the Edelbrock internal passages are just fine for normal driving. I made a Uni-Syn (Summit) adapter for my tops. I made one small adjustment after a check 2 years ago. They are a godsend. I used no rubber in my fuel and filter lines
I bought a linkage kit for a 427 Ford repo and made some of my own. Mine are set normal (not reversed) as I have a lot of room. I did not use modern Holley's so I did not have a Fitment problem. I idle off both and run on the rear. Reversed it would be just the opposite. Vacuum for the dist is off the running carb. I use the stock Ford "monkey motion" foot feed by making a shorter arm.
One of the internal choke tubes was good so I have a choke on the rear carb. Remember to tap and plug them if they are bad prior to installing the manifold. That exhaust leak noise will bug you and off it all comes to fix it. The choke is set to only slightly close but enough to sit on the first notch on the raise idle. It's off in a mile or 2 or I can "pop" the throttle and do it even before I leave the garage. I'm in So Cal and chokes are really a small convenience. Dead cold engine starts best by flooring the foot feed to squirt fuel into both ends. From then on I never touch the throttle just like a modern car.
Y-Blocks are a good looking engine made better by dual quads. I'm now a just a crusier but stick my foot in it once in a while to "clean it out". There is nothing like the sound of wide open 8 barrels running up a freeway blowing past 100 mph. Good luck and let's see some photos..
56 Vic, B'Ville 200 MPH Club Member, So Cal.