EMPI Pro-Sync Deluxe Carburetor Synchronizer | VW & Porsche Multi-Carb | Dual Boot Adapter Kit (43-5712-0)

EMPI Pro-Sync Deluxe Carburetor Synchronizer — Includes 2 Boot Adapters (43-5712-0)

Eliminate the guesswork and synchronization headaches with the EMPI Pro-Sync Deluxe Kit. This precision-engineered tool is essential for anyone running dual-carburetor setups on air-cooled Volkswagens, Porsches, or any multi-carb vintage engine. By measuring actual airflow volume, it lets you perfectly balance your carburetors for a smooth idle, crisp throttle response, and maximum power.

The Pro-Sync uses a highly sensitive, non-restrictive design that allows the engine to breathe naturally while you take measurements. This Deluxe kit includes two different rubber boot adapters for maximum versatility across carburetor throat sizes and intake configurations.

Vehicle Fitment

• VW Type 1, 2 & 3: All years — ideal for balancing dual HPMX, IDF, Dell'Orto DRLA, or Kadron carburetors
• Porsche 356 & 912: All years — synchronize Zenith or Solex 40 PII units
• Custom & performance builds: Weber IDA (48/51mm) setups, large-bore strokers, and European side-draft carbs such as Weber DCOE and SU

Why Choose EMPI?

EMPI is a trusted name in air-cooled tuning tools. The Pro-Sync is built to professional-grade standards with robust construction designed to withstand daily use in a busy restoration shop.

Key Features & Benefits

• Dual Adapter Kit: Two distinct boot sizes for a universal fit across a wide range of applications.
• Non-Restrictive Flow: Unlike older bubble-style gauges, the Pro-Sync won't choke the engine or cause stalling during use.
• High-Precision Scale: Easy-to-read 1–30 kg/h numbered scale for ultra-fine tuning.
• Versatile Application: Designed for both down-draft and side-draft carburetors.
• Professional Grade: Robust construction built for daily shop use.

Technical Specifications

• Scale: 1–30 kg/h numbered airflow scale
• Adapters: Two rubber boot adapters included
• Carburetor Types: Down-draft and side-draft
• Part Number: 43-5712-0

Frequently Asked Questions

• How many adapters come with the kit? Two different rubber boot adapters are included, covering a range of carburetor throat sizes and intake configurations.
• Will it work on side-draft carburetors? Yes. The Pro-Sync is designed for both down-draft and side-draft carburetors, including Weber DCOE and SU setups.
• I run a balance tube between my manifolds — anything to watch for? Temporarily plug the balance tube while using the Pro-Sync so you get an isolated, accurate reading from each individual carburetor barrel.

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