Mounts to the carb heat shield.   Premium quality copy of OEM in Stainless Steel.  
 
Expensive US sourced stainless.  A top quality , hand made part, there is no better!
 
Mandrel formed bends.
 
This tube is less expensive than the earlier 65-67 tube and can be used to replace that too.  (all you have to do is add a short section of 1/2" heater hose)