What ever you do don´t use the round soda can looking coils. Most of them aren´t made for the newer ignition systems. Use the e-core type coils. They usually have less resistance, and perform better. I use the Blaster 2 on my mustang, but I have a full MSD ignition system on it. They put out Hella spark. I got bit by mine once, and it did suck. My whole damn arm went numb. A friend was crankin the engine while I was doing a compression test and Instead of unpluging the coil, I just yanked the coil wire off to disable the ignition. It threw a damn lightning bolt at my carb, then at my hand. I learned a little something there. I´m sure Accell and MSD both make after market EEC-IV coils, but what you really want to look for when buying a coil is the primary resistance, and the Turns Ratio. The turns ratio is the ratio between how many coils are on the primary side (power side) to how many turns are on the secondary side (Spark side). The higher the turns ratio, the more output the coil can give. Plus you want to tak into acount that if you do get a non EEC-IV coil, then you will have to do some wire cutting and spliceing to hook up your new coil.