Well.. brakes are the most important part of the vehicle.. I don't think you should be supposing anything. What you have doesn't work so you are going no where fast. You need facts. And why buy a master that fits a Ford when all the other parts come from Chevy? Take a few minutes and look at a company like Wilwood, expensive? YES! but they will provide you excellent tech help and you can get many parts there that could help solve your issues.