Paul, Be sure to bleed the master cylinder on the bench.  instead of on the car( like I did)  Make real sure the brake push rod is not to long. I don't recall , do you have fron disc? I do, and had a heck of a time getting the front calipers completely bled.  I couldn.t get the M/C to stop with the air bubbles  coming back into it.  I recommend gravity bleed on the brake cylinders.  I got so PO ed at mine , I quit on it and a few days later , all the brakes worked fine!!!!............................MOI
On Saturday, January 21, 2017 at 1:45:41 PM UTC-6, Paul L.   http://1962to1965mopar.ornocar.org/ml-le wrote:
I purchased the one Gary referenced (in this thread) from Rock Auto.  It came a couple days ago, haven't done anything with it yet.  But it is a Raybestos brand, cast iron and looks to be good quality.  I'm also going to replace all of the rubber brake hoses while I'm at it.  I'll be working on it this winter as the weather allows.
Paul L.
On Sunday, January 15, 2017 at 10:01:30 PM UTC-6, Doug J wrote:
Wondering what those of you that have changed brake master cylinder and wheel cylinders have used lately ?  Going to a dual reservoir master.  Prefer new manufacture and made in the USA.  What brand and where did you get them ? 
Thanks
Doug
63 Sport Fury ragtop