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125-55 Holley 5.5 Power Valve (Promise 24)
125-55 Holley 5.5 Power Valve (Promise 24) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
At our website, we pride ourselves on swift delivery and shipping. Our standard processing time is by 12 PM Pacific Standard Time, ensuring most orders ship out on the same day when processed before noon. Plus, enjoy the added benefit of free ground shipping on all orders. For those who need their items even faster, we offer expedited shipping options, and you can also opt for convenient in-store pickup.
125-55 Holley 5.5 Power Valve (Promise 24)
Holley
Number one Selling Products
125-55 Holley Performance Carburetor Power Valve
Holley Carburetors that are intended for use with superchargers, have a unique capability that allows their power valves to reference the intake manifold vacuum below the supercharger. This allows the power valve to operates it should, based off intake manifold vacuum. A power valve provides further enrichment to the main metering system under load and low vacuum conditions. Without this external referencing, the power valve would be reading the supercharger boost pressure, which has no bearing on the engine load
With Single Stage
A Power Valve Provides Further Enrichment To The Main Metering System Under Load And Low Vacuum Conditions
Without External Referencing, The Power Valve Would Be Reading The Supercharger Boost Pressure, Which Has No Bearing On The Engine Load
Include Gasket
Limited 90 Day Warranty
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