Vibratory Polished For Good Looks Performance Upgrade For Stock To Mildly Modified Vehicles Universal Calibration For Easy Bolt-On Performance Factory Preset Electric Choke For Easy Startups Vacuum Secondaries For Use On Wide Variety Of Vehicles-Compensate For All Vehicle Weights, Gearing & Transmissions To Allow Smooth Opening Of Secondaries Dual Feed Fuel Inlets For Constant High Volume Fuel Delivery GM A/T Kickdown Power Valve Blow-Out Protection 100% Wet-Flow Tested By Holley Technicians To Assure It Arrives Ready To Run_x000D_ One of the most widely used Holley carbs of all times - the 0-80508S! Its dual feed fuel inlets assure you get all the fuel you need and its 750 CFM of airflow makes it the perfect performance upgrade carb. Its vacuum secondaries and electric choke make it super easy to use on a wide range of vehicles. Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60s. 1949-57 Chevy Classic Holley Carburetor 750 CFM With Electric Choke Delivers Legendary Street Hi-Performance
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