I personally liked to run side draft Weber DCOEs.
I tried the Clifford, Offy intake w/various carbs, from 2 barrels to four barrels & the best intake & carb combo I ever ran was a Clifford side draft intake manifold.
It ran so much faster & smoothed out the idle, the best! I.M.O.
BTW, it ran the best w/a 194 cyl head milled down & 12:0 compression.
220-230 PSI cranking pressure.
MBHD