[aerohead]

Funny! I had one in my '61 American. I have no recollection about the intake. I do remember the single downpipe which served as the exhaust manifold.
I created three downpipes with an oxy-acetylene rig, each with tailpipe and Cherry-Bomb glass-pack. Police gave me a warning for noise. After I painted the car competition orange there were no more noise warnings. Go figure!
And I managed to get a two-barrel Stromberg, with aluminum adaptor onto the beast. Head was milled enough to get it flat.( no pun intended ).
Cruising Van Nuys Boulevard on Wednesday nights, with the ignition retarded, and engine loping, nobody knew how to interpret the car. Reckon they thought it was a 'sleeper', as no one ever challenged me.
25-mpg, combined. Sold it when I got orders for overseas.