727 throttle pressure adjustment

The whine didn't start till I put the lokar cables in... The kick down lever shouldnt move till I give it at least half throttle correct?

No that's not the way it should be. The kickdown cable should start to move the tranny lever as soon as you accelerate from idle and the tranny lever should be all the way rearward at WOT. If the cable is not being pulled forward (towards the rad) by the carburator lever right off the bat then the hole that the cable anchor is bolted to is to close to the carb butterfly shaft centerline. A new hole needs to drilled further out on the carburator lever to change the angle and start to pull the cable sooner.

Terry