727 tranny

the Lokar instruction said to push gas pedal all the way down, then pull kickdown wire all the way out to pull kick down lever all the way, then tighten the wire stop down, then check to make sure everything is working! is that correct?

Close enough for starters, and you can adjust a bit for personal preference from there if you like.
A tighter cable will shift later and a looser cable shifts sooner, but you do want to make sure you have wide open throttle after any adjustments.