Holley 122-52 Carburetor Standard Main Jet Vacuum Advances The easy-to-use custom design enables

The easy-to-use custom design enables the removal of 1 or 2 valve springs at a time without the hassle of removing the rocker stand or any of the other installed rockers

Counteracts Wheel Centering Sleeve Work In Conjunction With Your Oem Two-Piece Flange Nuts

High Performance: Effectively filters contaminants from engine oil to protect your engine and enhance its lifespan

ensuring optimal performance and longevity for your vehicle

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Holley 122-52 Carburetor Standard Main Jet Vacuum Advances The easy-to-use custom design enablesThese Metering Orifices Control Fuel Flow Into The Metering System. They Are Rated In Flow Capacity ''Cubic Centimeters Per Minute'' And Are Changeable For Tuning Purposes. The Shape Of The Entry, Exit, And Size Determines Flow. All Holley Main Jets Are Flow Tested And Then Stamped With The Correct Number.