ok i have an update.the car runs like shit anywhere past 3/8 throttle.as soon as u step on it the car sputers and misfires like crazzy and then u let off and it runs fine.its only when u get on it or lightly accelarate that it misfires.the filter is good and the sensors are good but there was some roted vacuum elbows that i'm replacing and i'm going to check the plugs when it cools down and see what that tells me.i called advance auto and they want 230 dollars for the cap and rotor.does that sound right and also do u have to take the radiator and fans and water pump and crank pulley off just to get to the cap?also can u adjust the timing on those cars or no?any help please.