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power brake booster

  1. Brakes, Suspension & Steering
    I'm converting to power brakes on my 64 SS and have an option for either 9 or 11 inch booster. The motor being built is a 350 with edelbrock RPM top end and advertises only around 12-13 vacuum. I know most power brake systems require about 14+. I want to stay with the stock type booster and...