Mounting the coil packs poses the most variable element of the install. A lot will depend on where your combination has room. Also, a big-block will require different spacing as opposed to a small-block. To ease mounting on our dyno test engine, George used a long piece of threaded rod. The coils were fit in place, a nut was threaded on the rod on both sides of the coil and then tightened down when the coil was positioned correctly. Plain and simple-and it worked great. But remember, you could mount the coils on the car's firewall or inner fender panels. But we feel that keeping them as close to the plugs is the best idea.