M A Fry

G'day All,
Need some help to work out what connects to this tube on the choke side of my '69 L46 7029207 quadrajet?
TIA for any help you may provide.

Mark

Kerz

Take a look at this thread: https://www.corvetteforum.com/forums...-question.html

Duckstu

That should have a small vac line running to the vac advance pot on the dizzy.

M A Fry

I think I have solved the question about what connects to that tube, it is a vacuum line that goes to the diverter valve connected to the air pump (see the attached pages from the AIM).
The line can be seen on the first page, 208, running from left to right from the carby, crossing under the leader for item #10. On page 209, you can see it running back to the carby from
item #3, the diverter valve, and identified as item #5.