JamesW hooked me up with a solution when I was trying to figure out the linkage on my '67.
Using a 1/4" threaded rod with heim joints on each end connect the accelerator pedal to the carburetor. I used allen head screws with rubber washers and lock nuts to secure it in place. To pretty it up use a piece of brake line to slide over & camouflage the threaded rod. Taa-daa.
It looks great, is slicker than hell and butter smooth.
Total cost was about 10.00.
Yeah...Jordan linked to it