{"product_id":"hygrade-fm728d-carburetor-power-valve","title":"Hygrade FM728D Carburetor Power Valve","description":"\u003ch2\u003eHygrade FM728D Carburetor Power Valve Overview\u003c\/h2\u003e\u003cp\u003eThe Hygrade FM728D carburetor power valve is designed for Holley 2 and 4 barrel carburetors, including models 2300, 4150, 4160, 4165, and 4175. This power valve is engineered to regulate fuel flow efficiently, ensuring optimal engine performance across a range of classic and modern vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Holley 2 and 4 bbl carburetors\u003c\/li\u003e\n\u003cli\u003eFits Holley carburetor models 2300, 4150, 4160, 4165, and 4175\u003c\/li\u003e\n\u003cli\u003eDesigned for use in various makes including Buick, Chevrolet, Ford, and more\u003c\/li\u003e\n\u003cli\u003ePart number FM728D for precise identification\u003c\/li\u003e\n\u003cli\u003eSupports fuel delivery optimization under varying engine loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Hygrade FM728D power valve is a critical component for maintaining proper fuel mixture in carbureted engines equipped with Holley carburetors. By responding to engine vacuum changes, it adjusts fuel flow to prevent lean conditions during acceleration or heavy load. This part is compatible with a wide range of vehicles such as Chevrolet Camaro, Ford Mustang, Pontiac GTO, and Chrysler Challenger, among others. The FM728D is specifically designed to fit Holley carburetor models 2300, 4150, 4160, 4165, and 4175, making it a versatile choice for restoration or maintenance projects involving classic and muscle cars.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine hesitation during acceleration\u003c\/li\u003e\n\u003cli\u003eHelps avoid lean fuel mixtures that can cause engine damage\u003c\/li\u003e\n\u003cli\u003eImproves throttle response in Holley-equipped vehicles\u003c\/li\u003e\n\u003cli\u003eSupports consistent fuel delivery in varying driving conditions\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes including Buick, Lincoln, and Oldsmobile\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Hygrade FM728D power valve, ensure the carburetor model matches one of the supported Holley types (2300, 4150, 4160, 4165, 4175). Properly seat the valve to avoid vacuum leaks and verify the engine vacuum source is clean and unobstructed. It is recommended to consult the vehicle’s service manual for specific torque specifications and installation procedures to maintain optimal carburetor performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eHygrade manufactures the FM728D power valve to meet industry standards for durability and performance. While specific warranty details are not provided, Hygrade products typically undergo quality control testing to ensure reliable operation in automotive applications. For additional warranty information, refer to Hygrade’s official documentation or contact the manufacturer directly.\u003c\/p\u003e","brand":"Hygrade","offers":[{"title":"Default Title","offer_id":52155195654325,"sku":"BBGV-FM728D","price":22.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/HB_FM728D_Fro.jpg?v=1775589060","url":"https:\/\/www.partcatalog.com\/products\/hygrade-fm728d-carburetor-power-valve","provider":"PartCatalog","version":"1.0","type":"link"}