The Ultralight Velocity Streamline V2 Stack Adds Instant Power!
Bartolone has improved upon their original velocity stack by having a 360 degree angle radius that allows the carburetor to pull in more CFM (which increases more airflow through the main venture of the carburetor).
The first piece is a mounting plate that mounts to the carburetor like a traditional velocity stack, the plate also has a groove where an O-Ring fits into which provides a sure seal for the velocity stack. The second piece (velocity stack body) screws onto the velocity mounting plate. By doing this we are able to remove the bolt heads from the main velocity body allowing maximum undisturbed airflow for your engine therefore making performance!
If your carb has a choke we suggest using the Zenoah carb spacer (item AV512)