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From: Daven Anderson
Date: June 07, 2001
Certainly you should check the adjustment of the brake assemblies themselves at this point.
Your post just says 'new master cyl.',not specifying if it's original type single or a conversion to dual master cylinder. If it's the dual drum-brake type master cyl. (as used in late 60's/early 70's cars),those were intended for cars with single wheel cyl.'s in front,and using these cylinders on 55-61 cars with dual wheel cyl.'s in front usually requires an aftermarket proportioning ('check') valve to get proper brake pedal 'feel' and function.