1969 Race Dart w/ 426 Hemi- garaged for 45+ years

My thoughts on the whole tunnel ram - vs - cross ram intake are:

with 426 CI and factory iron heads, I think a cross ram with two 700 cfm carbs would work the best on a basically slightly modified street Hemi.
Trying to run a tunnel ram with two Dominators is too much for that engine. To take advantage of what the Dominators offer over the 700 cfm carbs, you would have to spin the RPM to the moon.
426 CI wouldn't be able to use 2000 cfm at all. Just my 0.02.....