Finding a longer clutch adjustment rod?

So I noticed after putting my car back together and installing the modified z bar in my car that I’m all the way out on the clutch adjustment rod in order to get the pedal to come all the way back up to the top. I had to use the modified z bar because I’m running TTI headers in my 67 383 4 speed dart. Is it possible to that I would benefit from a longer clutch adjustment rod the clutch that is in the car has low miles on it? If I adjust the clutch fork to engage lower down on the adjustment rod I can’t get the pedal to come all the heavy back up. Does this usually mean that there is plenty of life left in the clutch? I reassembled the z bar and clutch linkage as per schematics and it is nice and snug and doesn’t bind anywhere. I was thinking that you want the clutch to normally engage at the top after about 1” of pedal play from the top. The problem is that right now the pedal barely comes all the the way back up and the clutch doesn’t engage until about 3” from the floor. What am I doing wrong?