Originally Posted by hardhatz
I actually have a pretty good grasp on how to set up a TV cable, that's not my problem. I have done quite a few swaps that entail TV cables.
I only mentioned the TV to demonstrate that I have tried all that, and tried to use different settings to uncover the issue.
You demonstrated that you have a Q-jet carb... The Q-jet linkage geometry is not correct for the TV cable.
You installed a trans from a junk yard and are surprised it does not operate properly? With no history of the trans , it may be stock or a DIY worked on it that may caused the erratic shifting.
What is your rear end gear ratio? IF it is a 3.73 or 4.10 gear , it may be spinning the governor too quickly , causing the early shifts if the trans came out of a car with 2.73 gear.