Hydraulic Brakes

[Richard in Anaheim CA]

I know I should post this on the V8 or Hot rod forum but I thought I would ask among friends first.

A prospective new member to the club told me he had hydraulic brakes and after driving some miles they build up so much pressure they lock the wheels. I had a little experience with hydraulics 50 years ago but never ran across anytning like this.

Is this something common? Is there an easy fix? I already offered a complete set of mechanical brakes but he turned me down.

Thanks,

Richard
Anaheim CA