you will love the MSD .. for the first 20 years of my hot rodding life i depended on mostly stock ignitions or the occasional dual point stuff and fouled out a set of plugs every two months . but a friend put me on a simple blaster 2 coil upgrade on my over cammed and over carbed 460 Tbird and i rarely had to change out fouled plugs .. i went with the MSD 6A box and have never fouled a plug since ..