Tact,
If he doesn't have funds right now, could you explain to him as to how to set the tp lever the old hot rod way by useing the the coat hanger clipped to the hole on the bell housing being adjusted to keep the pressure right without the kick down? He would have no passing gears, but this kept the pressure right.
I am not good at explaining things, but made them to adjust the shift points. Still would have to use the shifter to kick down, but it would shift out good when in drive.
Also, for the most part, wouldnt the bottom part of his 4 barrell stuff going down to the trans be about the same coming up to the back of the block and hooking into the swivel on the 6pk bracket. Then the lever slide on the carb would be different and the top swivel?