Here's a side view. You can see that the upper arm on the black one is relatively straight compared with the curve of the other one. Also you can see the difference in length of the lower arm to the transmission.
The 4 bbl throttle stud is about 1" - 1 1/2" farther forward than the 2 bbl linkage...
I've compared the 67 and later throttle cable brackets from 2 bbl to 4 bbl and been able to just lengthen a 2 bbl slotted kick down linkage to fit and work properly on a 4 bbl....
So it would make sense that the 4 bbl bracket lever is about 1" - 1 1/2" forward compared to the 2 bbl....