I AGREE WITH PHAT ,I HAVE DISC BRAKES ON MY 54 BUT HAD SO LITTLE VACUUM WITH MY SBC ( ABOUT 7)I DID NOT GO WITH POWER BRAKES AND REQUIRES VERY LITTLE PEDAL PRESSURE. I DID GO WITH A MUSTANG DUAL MASTER CYLINDER.
THANKS
DRIFTER
PS I'M THE ONE THAT CAUSED ALL THE TROUBLE ON THE OTHER SITE!