Hey all, Just got my first ever truck, it's a '84 W250 with the 360. She's in need of a LOT of work. It belonged to my mother-in-law's cousins deceased husband and has been sitting in her yard wasting away for the last four years. It wouldn't run the last time she cranked it so she was just going to part it out so I took it off her hands for a few hundred $$. My first question (Probably of many) is what is the difference between the 360's in the '84? Next to the engine vin number (W) in the Haynes manual it says "Federal" what does the Federal mean?