{"product_id":"empi-carburetor-synchrometer-pro-sync-squarrle-cage-for-dune-buggies-vw-non-restrictive-dual-adapter","title":"EMPI Carburetor Synchrometer Pro-Sync Squarrle-Cage for Dune Buggies \u0026 VW — Non-Restrictive, Dual-Adapter","description":"\u003cp\u003e\u003cstrong\u003eThe EMPI Pro-Sync Carburetor Synchrometer is a precision squarrle-cage style tool that visually balances dual carburetors for smoother engine idle and even throttle response.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you tune classic air-cooled engines, dune buggies, VW Beetles, Karmann Ghia, VW buses, or motorcycle trikes, matching carburetor airflow is essential. The EMPI 43-5712 Pro-Sync offers a universal, non-restrictive method to compare intake flow between multiple carburetors. It uses a clear, easy-to-read scale and ships with two adapters so you can work with both down-draft and side-draft setups without swapping tools.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Pro-Sync make carb tuning faster and more accurate?\u003c\/h3\u003e\n\u003cp\u003eThe Pro-Sync gives a visual reading of relative airflow so you can adjust each carburetor until the indicators align. Because it doesn't block the intake, readings reflect real operating conditions and let you fine-tune instead of guessing. The numbered 1–30 kg\/h scale helps you reproduce settings and verify consistency across cylinders.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClear squarrle-cage visual indicator for side-by-side comparison\u003c\/li\u003e\n  \u003cli\u003eNon-restrictive throat preserves normal airflow during measurement\u003c\/li\u003e\n  \u003cli\u003eNumbered scale (1–30 kg\/h) for repeatable adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich carburetor types and vehicles will this tool work with?\u003c\/h3\u003e\n\u003cp\u003eThe kit supports both down-draft and side-draft carburetors, covering most classic VW and small-engine applications. Two included adapters expand compatibility so one tool handles multiple flange sizes and orientations. It's intended for universal, small-displacement engines rather than modern fuel-injected systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes two adapters for different carburetor fittings\u003c\/li\u003e\n  \u003cli\u003eCompatible with many VW, dune buggy, and motorcycle trike setups\u003c\/li\u003e\n  \u003cli\u003eWorks on both down-draft and side-draft carburetors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical results can I expect after synchronizing with this device?\u003c\/h3\u003e\n\u003cp\u003eA properly synchronized multi-carb setup reduces rough idle, evens throttle response, and helps you achieve smoother acceleration. While this tool doesn't alter jetting or engine timing, it ensures each carburetor contributes the same airflow, making subsequent tuning steps more effective. Results depend on the rest of the ignition and fuel system being in good condition.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmoother, more consistent idle across cylinders\u003c\/li\u003e\n  \u003cli\u003eEven throttle response during partial and steady throttle openings\u003c\/li\u003e\n  \u003cli\u003eClear baseline for further carburetor adjustments and jetting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is it to use for a home mechanic?\u003c\/h3\u003e\n\u003cp\u003eThe Pro-Sync is designed for straightforward, hands-on use: attach the adapter, clamp or hold the cage over the intake, then read and equalize the indicators while adjusting throttle linkages. No complex electronics or calibration is required, making it suitable for backyard mechanics and professional shops alike. Its compact form fits in most toolboxes for field tuning.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuick attach adapters make setup fast\u003c\/li\u003e\n  \u003cli\u003eVisual scale eliminates the need for electronic gauges\u003c\/li\u003e\n  \u003cli\u003ePortable and durable for shop or roadside use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The EMPI Pro-Sync is aimed at classic car enthusiasts, dune buggy owners, VW restorers, and small-engine mechanics who want a reliable, visual way to balance multiple carburetors. If you work on dual or multiple carb setups and need a repeatable, affordable sync method that won’t interfere with normal airflow, this tool is a practical addition to your tuning toolkit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Pro-Sync work on both down-draft and side-draft carburetors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it includes two adapters so the squarrle-cage synchronizer fits both down-draft and side-draft carburetor applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will using this tool restrict airflow during measurement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the Pro-Sync is designed not to restrict airflow, giving more accurate, real-world synchronization readings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":48084037206174,"sku":"B0075AW6CI","price":66.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/empi-pro-sync-front-view.jpg?v=1785844398","url":"https:\/\/northtrailauto.ca\/products\/empi-carburetor-synchrometer-pro-sync-squarrle-cage-for-dune-buggies-vw-non-restrictive-dual-adapter","provider":"North Trail Auto","version":"1.0","type":"link"}