Not Ranked
Power brakes are are not needed on a light car. Heck, even the early Mustangs don't need them, and most any Cobra is 600 lbs. lighter than a '65/'66 Mustang. With the right brake pads (ebc red stuff or Porterfield R4-s) you can lock up the wheels at highway speeds or higher with manual brakes if care is not taken to brake carefully.
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'65 K code Mustang
'66 Galaxie 500
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