A body brake pedal ratios ???

Does anyone know what the brake pedal ratios are for Dart/Duster with power Brakes...and the ratio for manual brakes. Thanks

The brake pedal ratio was the pretty much the same for all of the A-bodies as far as I know, it’s ~6.5:1 based on the pedal. Power and manual brake pedals weren’t different, just the length of the push rod because of the booster. There is probably a slight overall ratio change because of the booster linkage, but that’s not at the pedal.

Automatic and manual transmission cars had different pedals, but the same pedal ratio for the brakes.

Would anyone have the measurements of the pedal (as to figure out the ratio) for a Power Brake A body ? This is just something I'm working on. I don't have an A body car to check for myself. Thanks to anyone that can tell me this information