Gas Pedal Conversion?

I have never liked the early A and B body gas pedal setup and thought there has to be a way to convert it to the later style. Has anyone ever done this? Or, do you have any input on how to improve upon this original setup?

The problem I have is I don't get full use of the throttle. Limited throttle travel. No matter how I adjust the cable, I still don't get enough pedal.

Photos are of my stock setup.