I glass-bead the surfaces with ultra-fine beads and low pressure; THEN send the zinc alloy casting to a metal laundry company to re re-chromated.
All zinc-alloy carburetors will have this problem, Carter and Rochester seem to have it more so than Holley, Stromberg, or Zenith.
Jon.
Does the re-chromating have a functional application or is it just to restore original look?
