{"product_id":"vrs-4150-850-cfm-4-barrel-carburetor","title":"VRS-4150 850 CFM 4-Barrel Carburetor","description":"The Edelbrock VRS-4150 carburetor is a high-performance 850 CFM, 4-barrel unit engineered for serious competition and demanding street applications. Its standout feature is the advanced four-circuit metering system, which provides granular control over fuel delivery across the entire RPM spectrum. Unlike traditional two-circuit carburetors, the VRS-4150 includes separate idle\/transfer slot, intermediate, low-speed main, and high-speed main metering circuits, each with adjustable air bleeds for fine-tuning. This allows for highly precise adjustments to achieve optimal air-fuel mixture curves, a level of customization previously requiring professional modification.\n\nConstructed with a billet metering block and a 3.75-inch tall cast aluminum body, the VRS-4150 is designed for durability and direct fitment on manifolds with 4150 and 4500 carb flanges. The 850 CFM model utilizes large annular discharge boosters for enhanced airflow. It also includes a built-in fixture for a throttle position sensor (TPS), useful for data logging or electronic transmission control. Standard Holley 4150 replacement parts such as main jets, bleeds, and power valves are compatible, simplifying maintenance and tuning.\n\nUsers should verify local emissions laws before installation. The advanced tuning capabilities make it ideal for experienced carburetor tuners seeking to extract maximum performance from their engines.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":52687925084472,"sku":"EDL-1308","price":957.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662657586.jpg?v=1784887571","url":"https:\/\/store.motormia.co\/products\/vrs-4150-850-cfm-4-barrel-carburetor","provider":"MOTORMIA","version":"1.0","type":"link"}