1965 Dart front disc brake conversion low brake pedal

Stumpy said
It’s up nearly as much as it was when I brought it in. It is about 2 cm down from where it was. Is the stock rod adjustable?

2cm. I had to look it up. That's gettin close to a full inch. Like .787" That's a ton. So if the pedal rod is adjustable, that could solve your issue.