hesitation at take off. Spit and sputter.

after the truck has been at a stop, when taking off it actes like it wants to die. Reminds me of a carborator issue on older models of cars. It also has a muffle sound when it finally goes. After it goes it is fine. It reacts fine and idles fine. Yester after starting it after work, it would race up about 50 rpm's and go back to normal cold idle and then race and then idle. Like I was giving it a quick thrust on the gas peddal, but was not. On interstate it is fine and responds fine. Runs good as long as I don't stop. It does more often in lst 2 days after stopping. Sometimes it takes off just fine. Have replaced fuel filters(both). It is 6.0 L w/ turbo. Superduty.