73-87 Brakes on a 64 "Brakenstein"

[basshawk]

I have done the 73-87 front and rear end conversion on my 64. I dont think I can fit a brake booster with my big block, so I have decided to go with manual brakes. My plan is to get a master cyl. from a 67-72 w disk brakes and I think that it will bolt directly to mt firewall. My question is: does anybody think that my brakes will function correctly with this combo? Also how do I tell the difference between a manual and power master cyl if its not on the car? Any help will be appreciated.