From looking at the Chrysler parts catalogs, intake manifolds starting with 4100--- were only used in 1979.
Intake casting numbers and catalog part numbers are usually different by one digit.
Casting number 4100337 has a catalog part number 4100338. The 1979 Chrysler parts catalog shows only one 4 barrel manifold for all vehicles 4100338.
Direct connection numbers usually start with a P.
Don't see that number with or without P in any of the Direct Connection catalogs.
None of the part numbers shown in the link from post #23 are good numbers.
They are not in Chrysler's part number history.