Putting A '77 Slant In A '64 Valiant?

The 64 uses the "twisty" throttle linkage, and the kickdown to the trans is connected to lever on the twist rod near the firewall. The super six carb uses a cable linkage, and the kickdown connects to the manifold/carb. You will need to remove the "twisty" linkage, and convert to a cable linkage and pedal (64-66 V-8 will work), or you can get a "hanging" pedal and cable assy from a later car, which will work with minor mods (I have even used a pedal/cable from a "K" car).
The 64 kickdown linkage is removed, and the linkage from the super six is used as is, but needs to be complete, including the lever on the trans.