I am considering purchasing Bosch fuel injectors part number
0280150556 D5B-19lb, FiveOmotorsport lists these for use in 1990 4.5l cadillacs.

Does the Allante use the same fuel injectors as the Deville 4.5l?

Has anyone used these injectors in an Allante.........How did they work?

the stock allante injectors are 17.5 lb/hr injectors, but the 19 lb/hr injectors for a 5.0L lincoln towncar or mustang GT, will give you better performance and a smoother ride, because the spray pattern on them is a little bit better