1992 Mustang runs rough after warm up
Heres the deal before tune up car ran fine, after tuneup it acts like there is a miss after the car warms up it idle's fine, but when you take off it bucks and kicks give it more gas it goes then at normal speed say around 4th gear at 2,000 rpm you can watch the tach drop then come back up and you can feel the car slow down and go again. I replaced plugs, wires, cap, rotor button, coil, changed mass air it is all stock. Could it be the fuel filter, I did not replace it!!. Please help its driving me crazy. When i crank it in the morning it runs fine until car gets up to normal temp.