While looking at my carburetor I noticed that these holes are not always the same size.
On a Chevrolet, they seem to be .029" in diameter, but on a Cadillac or Oldsmobile they are as big as .055".
What does this do, and how does it effect the AFR ?
Are these an air bleed for the main wells, and why would there be different sizes?
How do they affect the AFR?