Super Six install on 1974 Dart

rich006 said

I thought I needed to replace the bracket on the end of the kickdown linkage, because I'd been told that the D is oriented differently on the Super Six. However, the bracket original to my Dart is the same as the one that came from the donor 1979 Lebaron.View attachment 1715627162

Click to expand...

are you certain the two are the same?
i think more importantly the the position of the D shaped hole, is the distance between it, and the hole where the kickdown linkage actually attaches

this determines the ratio of the kickdown



as for the colder intake, i would see if an airhat from a dakota would fit on the 2 barrel

if it does, that would be my starting point
(one of these)
i betcha they practically give them away at the local junkyard