[TR] Carb vacuum advance

[terryrs at comcast.net]

Installing the vacuum advance union into the front carb with the carbs in place is a pain because it's so hard to get at.  It's also hard to tell if the compression ring has been seated.  

Has anyone cut a seven inch or so length of copper tube, installed it in the union, and then used a rubber hose to splice it to the rest of the copper tubing leading to the vacuum advance on the distributor?  Then it would be a simple matter of tugging off a rubber hose to remove the carbs?

Terry Smith
'59 TR3A, New Hampshire