1971 Scamp limited....

I bought my car in '79 from original owner and it was all original and it had no proportioning valve, not on the frame rail and not built into the distribution block either, it didn't have one. The original owner filled the spare tire well, trunk drop downs, and area under 1/4 windows with sand to try to counter the rear wheel lock up problem. I spent over 20 years replacing parts, bleeding the system, and scratching my head. Then the internet was invented, I joined forums, did a lot of research, and I finally figure out how to get the brakes to work. So I want to save others from the grief I went through.