Yes, I am aware of the thread proving that all of the UIM have the same basic measurements, and don't want to bring that up again. The interesting thing is the size of the lowers. They measure much closer to the larger returnless size. Is it possible My car was assembled right when they were switching over to the 98.5 spec and got a larger lower manifold with return style fuel rail. It would be strange if I did, but knowing Ford, it is possible. Please help if possible.
But, I don't mind having the larger lower at all.
