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Holley 750 CFM 4-Barrel Blower Carburettor - Shiny Finish (HO0-80573S)
Holley 750 CFM 4-Barrel Blower Carburettor - Shiny Finish (HO0-80573S) is a special order in item. They take approximately 3 - 5 working days to arrive to us. Please get in touch with in prior to ordering if you are needing something more urgently.
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Description
Description
HO0-80573S - 750CFM S/CHARGER CARB SHINY
Mechanical Secondaries. Manual Choke
Part Number: HO0-80573S
These Carburettors that are intended for use with superchargers, and have a unique capability that allows their power Valves to reference the intake Manifold vacuum below the supercharger. This allows the power valve to operate as it should, based off intake Manifold vacuum. A power valve provides further enrichment to the main metering system under load (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.
Model 4150 with shiny finish
Small block Chevrolet 1x4, 170 series blower calibration
Four-corner idle system
Manual choke
Dual 50cc accelerator pumps
Mechanical secondary
Boost referenced power valve
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