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I have a 93 Ford Dutchman motor home Built on a Ford E350 with a 460 engine.
Recently on my way home from the race in Martinsville I had to have the fuel pump replaced. Noticied as we were leaving the garage a little black smoke from the exhaust. Thought maybe it needed to just run it ways. About 60 miles later it was still burning rich realized I was only getting about 2 miles to a gallon. I was only about 190 miles from home decided that it was the middle of the night and just wanted to get home. When I got home I replaced the plugs, well it is still not burning right. I am looking for any ideas as to what else went wrong.
check the fuel presure regulator pull the vacum hose off and see if there is gas in it if so replace it if not check fuel presure return line could be pinched.