Holley 125-500 Power Valve Check Ball Kit
An important component in the power enrichment circuit of Holley's performance carburetors, Holley's check valve closes quickly to seal off and protect the internal vacuum passage if a backfire occurs. Controlled by engine vacuum that opens and closes it, this check ball supplies additional fuel to the main system during heavy load or under full power situations to eliminate hesitation and bogging--ensuring the smooth delivery of power for optimal engine performance. The check valve also protects power valve diaphragm from damage due to engine backfire. Holley check balls are also available in many different vacuum ranges to time the system's operation to your specific requirements, and they come in your choice of single-stage, two-stage, and high-flow designs.FEATURESSeals off and protects the internal vacuum passage if a backfire occurs for longer carburetor lifeSupplies additional fuel to the main system during heavy load or under full power situations to eliminate hesitation and bogging for optimal engine performanceFast, easy installation for less downtimePrevent power valve blowouts for enhanced engine performanceIncludes gasket for quick installationWhat's in the BoxPower Valve Check BallGasketSPECIFICATIONS125-500 Power Valve Check Ball