JEGS Adjustable Vacuum Relief Valve

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The JEGS Vacuum Relief Valve allows calibration to attain your desired vacuum level for optimal performance from auxiliary vacuum pumps or headers E-Vac systems. Adjustable without removing the valve after installation so precise settings can be obtained during dyno pulls. Easily installs on valve cover or intake manifold valley area 6061 T-6 aluminum and clear anodized. Made In USA