Kickdown issues lokar kickdown upgrade?

Hey guys, I been having an issue, when I adjust my edelbrock for Wot throttle and allow the kickdown to be adjusted so it can let carb achieve Wot the trans won’t kickdown and downshift and rev up, it only does that when I adjust it so it can’t give full Wot, maybe I would say 3/4 of full WOT.

Do I really need the carb to crack open all the way? Or is there a certain point where it doesn’t matter a.

I was thinking maybe it’s the geometry I have a 318 904 transmisson with a Rpm air gap style intake.

With all that said would a lokar cable kickdown cable fix all this would it allow me to achieve WOT and have that 904 kickdown ASAP. Thanks for your ideas