Quote:

I run manual discs on my car with no issues. What exactly is the problem? I used a M/C spec'd for a 1976 Plymouth Valiant with manual disc brakes. I think it was 1 11/32" bore.




Uhhh, with a master cylinder bore of that size, you'd need legs the size of Lou Ferrigno to stop a tricycle!
Maybe 1 1/32?

Using a drum/drum master cylinder isn't advised anyway. The volume isn't right, the bore size isn't right. As stated before, more info is needed to provide any help.