These dial indicator adaptors allow you to synchronize your SU carburetors without removing your air cleaner. Also you can adjust the fast idle screws and check the carburetors are drawing equally as the throttle is engaged. They are available with the dial indicators for $175 including shipping. They fit HS4, HS6 and HIF4. Orders may be placed by emailing mgupgrades@gmail.com or phoning 416 568-1793.
MG Upgrades 