Philippe wrote.......... ------------------- '57 had WCFB (4 barrels with vacuum operated secondary) and '58 (except earlier' 58) had AFB 4 barrels with mechanical secondary. ------------------- 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