The master cylinder I used is from a 1971-1976 Corvette, non-power assist with a 1" bore. It was manufactured by autospecialty/Kelsey-Hayes and is currently on sale at Rock auto for $18.00. Bonus!!
*Just to be clear, I will be plumbing this system tonight. I don't expect any issues, but who ever does? I will post on the outcome. On my project '50 truck I used one of those complete pedal/ power mc assemblies and a disc/drum setup. It plumbed up with no issues. I bought the mc assembly at the Daytona rod run a few years back from one of the vendors who didn't want to haul it back home! I just don't like the look of the pedals on those things. I'm more of an original look with hidden modern performance guy!
Thanks Coffee. Let us know how it plumbs and works?