Ok, so my father and I replaced the fuel filter, spark plugs, spark plug wires, and valve cover gaskets. Still, the car shakes on acceleration and has a little rough idling. I noticed that the exhaust puts out as well. however, right after we changed the fuel filter i took it for a ride and it ran perfect, i was so excited. But i started it up a second time and it went back to shaking and the way it was. Please help me, I am stumped! I dont know what else to do or change.