and just an FYI - if it does have a dual ballast , the connectors that plug into it have a little prong sticking out and have to plug in the ballast specifically the way they are supposed to otherwise you will be getting hardly any spark at all and will cause a misfire under load with less than adequate or old plugs/wires/cap/rotor.sometimes these tabs get broken off and people assume that it doesnt matter which way they plug in when it really makes all the difference.experience coming from chasing misfire demons. i bought all brand new ignition parts (not that,thats a bad thing) chasing a slight misfire and weak spark when come to find out the ballast had one of the connectors upside down and tab was broken off from the previous owner, and the spark was so weak it would hardly run. just something to check while you are at it. it doesnt hurt to take a piece of 320 grit and lightly clean your spark plug electrodes and re-gap your plugs along with the terminals on the inside of your cap and rotor. and if you are real ambitious, fire up your car in the pitch black of the night,pop the hood,and if you have a bad wire or two,chances are good that it will be grounding out somewhere in the engine compartment and you will be able to see it. wires dont usually go bad unless they are burned or real old, or the boot is not fully seated over the cap or plug. just trying to help----
