Is the kickdown linkage set up right?

The big difference in hieght is due to the intake. So its not so much 4 bbl vs 2 bbl. When using a lower single plane like a street dominator the '2bbl' setup is pretty good.
Changing the geometry of the adjustable link to the upper bellcrank changes the distance it moves the other two rods.
Oldmanmopar just posted bunch of good photos and description in the post about throttle cables in the Fuel subforum