super six linkage

Dartnewbie said
. . . Also what is the best pedal assembly and cable to use in my 63 to change this from the rod linkage?

For the easiest swap, I'd use the 64-66 V8 or the 65-66 slant 6 factory AC pedal - both the same. I've never tried it but believe a 67 -up pedal could be used with some work.