Mechanics

MY 390 WITH A HOLLEY 500CFM SPUTTERS BADLEY WHEN UNDER A LOAD AND ACCELERATION. BUT IDLES FINE. ANY IDEAS

1972 Ford F-100 • 86 miles

Changed acelerator pump. Messed with timing advanced to retarded no help.
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Rosscog
July 26, 2012.



Check to make sure the accelerator pump is working properly. Make sure there are no vacuum leaks, make sure the fuel pump is supplying enough fuel.