[Krow]

A buddy of mine picked an original front disc brake set up, rotors, calipers, master cylinder, backing plates and caliper brackets, the Q is that the calipers are a one piston caliper the guy said it was off a 69 camaro but I'm not sure, the master cylinder is def after market, so is there a way to tell what these brakes came off of so I have a better way of getting parts for these if or when I need? the master cylinder is billit or chrome not really into the look so I would want to get the cast iron master.
These are going on my 67 FB which has power drum/drum
Thanks for the help