MoPar Brake Upgrade Options?

What in your opinion is the best non power master cylinder to use for a 1968 440 cuda disc and drum combo with firewall headers

This works very well: Mopar Aluminum Master Cylinder Kit

Go with the 15/16" bore for less pedal effort.

I'm using the 1 1/32" bore but I can tell you it does require a bit of pedal effort. Not a big deal to me, because I have strong legs.