ORIGINAL: junknotch

Hello new to this forum and need some advice. This is my second stang had a 88 notch before and now bought a 91 notch. The car runs like crap ( of course when i looked at it before I bought it it ran well ) The car can not get out of its own way. I changed the plugs wires cap fuel filter played with the timing. The car also runs rough on a idle when it warms up and dies at lights. The car has underdrive pulleys and I know the the amps usually run low at a idle but they dont kick up while the car is driven. ( my 88 would drop down and shoot right up) I made sure the firing order is correct, there are no leaks. I dont know if the maf is bad how do you test it ? or this motor is just tired and help would be great !!

Also looking for a clean trunk lid and front fenders must be clean !

thanks
Joe