Need help/advice

Whoever told you that is full of el toro poo poo. You will need to replace the rod style throttle linkage with a cable setup and your kickdown linkage will need to be replaced. Lokar and Bouchillon Performance both sell kickdown cable kits that work quite well. Cable throttles are even easier since they came stock in any '67 up A body and all you have to do is remove the '64 linkage and the floor pedal, drill 2 holes in the firewall, and bolt up the new pedal assembly. I have one out of a '72 Valiant I will send you if you want it, but it will need a new cable. You will also need a cable bracket at the carb to tie everything together though that should have come with the manifold and carb from Clifford...