Throttle for 64 Dart Help

Hey I’ve got a 4-barrel Holley on my /6 In the 64 dart. How do I hook it up to the pedal inside so it works and the A/T kickdown works?

I’ve searched around and it looks like he 318 V8 pedal assembly is correct? If so, does anyone know where I can find one?
Alternatively, is there another pedal assembly that will work? Maybe a lokar assembly?

any help appreciated.