1972 Ford F-100 Repair Question
Topics covered: Fuel pump, Vacuum leak.
Mileage: 86 miles.
Mileage: 86 miles.
Asked on July 26, 2012
My ford 390 with a holley 500cfm sputters badley when under a load and acceleration. but idles fine. any ideas
Changed acelerator pump. messed with timing advanced to retarded no help,
Answer
Replied on 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.