Car starts fine and drive for maybe 0.25 miles and then it slows and will respo

What is your question?

My 2002 C70 starts and runs fine at idle but then will not acclerate. I then will run fine for a short distance. After driving it in this condition for maybe3-5 miles it seems to run just fine. I have replace the gas line and air filters. NO check engine light and OBD II shows nothing. Can anyone help me?