Skinny tires huh! Not a very good picture as it's a scanned print which has been cropped - soooo
These are single puck Wilwood front disc brakes on a now long gone T-bucket. The rears were standard on a Ford 8" rear end. The master cylinder was a 1" bore Ford along with 2 and 10 psig residual valves and the pedal ratio 6 to 1 or possibly a little better. The car originally had another brand of after market disc brakes( Airheart 175's) as well as a too big bore master cylinder which occasionally made for interesting stops and no resid valves. The change over totally changed how the car stopped from omigolly to great. My current car, a '31 Ford, has Wilwood discs on all corners and does really well in the stopping department.