TecMate CarbMate 4 Cylinder Adapter Synchronize four carburetors effortlessly with this precision adapter designed for use with both the CarbMate and SynchroMate tools. Ideal for ensuring consistent airflow and performance across multiple carburetors, it's a must-have for tuning complex engines to perfection. Features: Includes interconnections and additional 2 tubes that match existing instrument tubes Compatible with CarbMate or SynchroMate