ISO: Disc Brake Master Cylinder for 1967 Barracuda

Previous owner left the drum brake only MC on my 67 Barracuda that he converted to front disc brakes. So when I replaced the from discs with Willwoods, I get no difference in travel.

NEED: MC part number 280 8600; casting number 222 5541 for disc brakes.

disc drum master cylinder Dorman.jpg

disc mc diagram.jpg