I listed this in "Off Brand" because I don't recall what I got it from. I'm thinking maybe Olds?
Anyway, this button holds vacuum like it should and releases like it should.
$10 plus mail costs?
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars