If you want to make what you have work then find a good street rod fab guy in your area and let him sort it out. Shouldn't take much time, just a little fab work and they'll have it working for you. Not a difficult job.

That is what I was saying. Finding what you want and will work is a process and budget many times will determine what you do and nothing wrong with that.

To fix the angle of your Lokar kd cable cut a piece of aluminum from home depot the size of your current bracket + enough to raise the kd cable to be in line more and drill a 1/4" holes[3] 2 where the current holes are and 1 above.You will use a bolt in the current kd hole and cut a slot in the new bracket for each cable to slide in and snug the cable nuts to secure the cables.I will look at the throttle levers and see what it needs to work,how long a spring and what spring fastener to cable.I hope this helps.

Yes, I already have a piece I’m going to use to remake that bracket to correct the angle

From driving my car around the block a few times I can say you want the kickdown full on near your carb secondaries opening and that maybe can guide you for the length of the cable travel then add the spring length.

I was thinking if you have the ball n stud connector for the kd cable like used for the carbs you can use 2 nuts and a washer between for the over extension spring and not use the nut sleeve for the ball,stud. I am done for a while til you make progress or have a question.

just my opinion and nothing less, my personal experience trying to fix lokar products [especially the kick down kit], i would toss them and try to use a factory cable style kick down.
i have found the lokar inner cables are low quality and stretch, and the bracketry is made of insufficient thickness with no needed bracing, and bend easily.
my experience is removing over a dozen of these "kits" and re-installing factory pieces, plus re-engineering several brackets as well as replacing cables with ones of better quality.
your mileage will vary.

I have considered this and I do have a stock throttle cable but I didn’t know there was a trans cable - thought they were all rods and pivots. I do have the kickdown rods and brackets that came on this engine but that’s not going to work. My experience is that once you set these cheap lokar cables, you better leave them alone. I have had to move mine a few times and now they’re coming apart.

90s/2000 trucks had cables for the trans.

In the days before Lokar and such, I made KD provisions by running 1/8" (1x19) aircraft cable inside steel brake tubing flared at each end. My dual Holley blower setup used a mechanical pushrod throttle linkage with a bellcrank mounted at the rear of the 6-71. The bellcrank both pushed the carbs open and pulled the KD lever from the rear. The tubing mounted on a bracket at the engine and another on the trans tailhousing bolts similar to Lokar. A spring is mandatory to pull the trans lever forward and the trans lever travel needs to closely match the carb lever travel. I don't have pics of the cable setup but here's the car it was mounted on circa 1976.