sn-95 rear swap?

[kj91gt]

Hi, I’m going to be doing the sn-95 rear disc brake swap, on my 91 gt with cobra parts. I already have the Bullitt front swap done. My ? Is on witch master cylinder to use,i don't want to firm of brake pedal. should i use 93 cobra or sn-95 master cylinders from the cobra or gt. I like the pedal feel on my car now or a little firmer, witch master cylinder should is us? Thanks