904 transmission shift issues...

Okay. I have a holley 390cfm carburetor. Brand new with electric choke. I have a 904 automatic transmission behind it with a stock torque converter. Yes you are right in that I have customs kick down linkage. I am trying to move the kick down linkage back and fourth but I'm obviously not having any luck. The throttle linkage is jimmy wrigged. Do you guys recommend a throttle linkage adapter that will make adjusting easier?


To answer your question, I'm not sure if I have a mechanical or vacuum secondar system in place. I think if anything I'm running too rich though. But maybe when I floor it, it gets too lean. I don't know. My skill and experience is lacking in this department. Sorry for the lack of information guys. I can only describe the symptoms.