Little help with kickdown on Super Six conv

Hi. That picture is not my car. Just for reference for the spring. Hey I like the idea about using a nut in that slot. So you guys are saying that the throttle pin is supposed to be snug to the bottom of that slot, right? Right now it is just floating, and seems to be working. So this spring needs to be pretty tight?? This is my setup. this is car off, at rest.