1966 Barracuda factory power brakes

Firs of all, dp you have any brakes at all? I just helped a friend of mine installing a complete setup on a 65 Signet. After adjusting it still wasn't good. So I adjusted the rod but no progress. The I took off the lever between the m/c and the pedal arm. It was 3/8 short when I compared it with the lever from my Dartcharger. The reason might be that these power brake setup was leftovers from GM. They used it on 1958 to 1960 GM cars and their levers was shorter.
So check the lenght on the lever on you car and I will measure mine.