Who has a KH sbp "non-power" disc in front

I have the manual KH disc set up in a 1966 FS Barracuda and in a 1968 383 FS Barracuda. I had Stainless Steel Brakes rebuild the calipers. I run Hawk hps pads. I used new 1 1/32 master cylinders for 1968 Barracuda with manual disc brakes. Or ask for a manual disc brake master cylinder for a 1970-1972 Duster. I did not know about the 1 inch bore 1970 master cylinder, very interesting...