Kickdown cable> Lokar ? or Buchillion?
I messed with my kickdown linkage for a couple of years without much success. 20 minutes to install the Lokar kickdown and throttle cable with two adjustments and it worked fine. The Lokar setup is cheap when compared to how much I spent on a psychiatrist to try and get over the kickdown blues.
http://myweb.cableone.net/ebuxton