Joran >From the factory the 1959 to 1965 413 powered Imperials were only delivered with a single four bbl carb. But, that does not mean an Imperial owner could not have spoke with the dealer to have the shop install either the long ram, short ram or the in-line dual four bbl carb that was on the Chrysler 300 letter cars during the same era. The sportier two door models and converibles would have had this than say the banker in his Le Baron. Here in Colo Spgs is a '56 Imperial with Zebra skin incerts on the seats and the '56 300B engine that was a special order ( SO ) for the owner of Witherton ( spelling ? ) Rifles. Rodger Colo Spgs