Philippe wrote..........
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'57 had WCFB (4 barrels
with vacuum operated secondary) and '58 (except earlier' 58) had
AFB 4 barrels with mechanical secondary.
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I had two original 57 Imperials a number of years ago and both came
equipped with the Carter AFBs with mechanical secondaries. I have examined
a number of 57s over the years and all of them have had Carter AFBs.
Ken Miller
former owner of two '57s and a '64 LeBaron
Curtrently with a '61 and '67