{"product_id":"secondary-metering-block-conversion-kit-shiny-aluminum-1","title":"Secondary Metering Block Conversion Kit - Shiny Aluminum","description":"Easily convert your 0-1850SA or 0-80457SA 600 CFM carburetor to a model 4150 by adding a secondary metering block. The addition of a secondary metering block will allow you to fine tune your carburetor by utilizing replaceable main jets versus the fixed orifices found in a metering plate.","brand":"Holley","offers":[{"title":"Default Title","offer_id":48407253483778,"sku":"BBVL_34-6SA","price":67.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/34-6s.jpg?v=1787870711","url":"https:\/\/www.lethalperformance.com\/products\/secondary-metering-block-conversion-kit-shiny-aluminum-1","provider":"Lethal Performance","version":"1.0","type":"link"}