Seller notes

Gearhead Online's all new 1964-72 GM A-Body Hydro Boost power brake booster kit generates 1200 to 2000psi to the calipers and is fitted with a Wilwood master cylinder and BlackOut adjustable prop valve. The Hydro-Boost is powered by hydraulic pressure from the power steering pump. It requires 'no vacuum'. This has several advantages. No external vacuum pump required on low vacuum high performance motors. No 'small bore' master required. Firewall and valve cover clearance is increased. Frame moun...

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