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I have a 1987 shasta motorhome Ford E350,with the stock Motorcraft(Holly) double pump 4bbl carb.I am considering replacing the carb with an Edelbrock performer 750cfm unit.I have heard through some sources that I should gain a few miles per gallon and some performance.Im not expecting any miriacles,but 9 or 10 MPG would be nice.Has anyone out there made this upgrade and what were your results. Any information is appreciated |