Another option is a Willwood model. Offered by people like Summit Racing. They offer GM style masters with different piston diameters. I op'ed for the 1" 1/16 dia piston. Moves more fluid with shorter stroke, but increases peddle pressure. I think they also have 1" and 7/8 so you can "tune" the system. Cost is about $110. The wilwood models are cast Alum so you save some weight and ditch the rusty cast iron look.
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