'91 Ford F150 302 V8 coil has worked great on last 3 builds using MSD 6 boxes; fires off immediately, runs cleanly, and you can mount it in any orientation you need. I also use the matching pigtail. Autozone sells both. Bypassed ballast resistor on all 3 cars as MSD recommends, using a jumper wire. Distributors were either MP (re-curved) or FBO with their advance plate, which I now prefer.