When accelerating car is missing real bad

What is your question?

Only when taking off from idea it's real hesitant. Now I already change plugs plug wires and still problem is there also change fuel filter and has blue smoke coming from tailpipe

What makes this problem better or worse?

Its worse when engine has been sitting idel

How long has your 1997 Pontiac Sunfire had this problem?

Started all a sudden 2 days ago