Yes sir, heat tube for the chokeQuestion:
The centre carb has a tube running from an assembly (sorta looks like a vacuum unit?) to the centre runner on the intake, held in by or the aperture controlled by a small flathead screw. It looks like it got painted Olds Gold as a fixed part of the intake.
What is this and its function? As I look at it further, must be a bimetallic choke and heat tube... yes?
Yes,restored