Installation Manual

They store voltage, or accumulate it, until a point at which a trigger signal allows release of this
more powerful spark. Companies like Mallory, MSD, Crane and Accel, to name a few, offer such
systems.
They affect spark plugs in that they allow the gaps to be opened up to take advantage of the
increased capacity. The theory is that the larger and the more intense the spark you are able to
present to the air/fuel mixture, the more likely you will be to burn more fuel, and hence the
more power you will make.
We encourage the use of such systems, but only on modified or older non-computer controlled
vehicles.
In reality, computer controlled vehicles do such a good job of lighting off the air/fuel mixture
(as evidenced by the ultra-low emissions), added ignition capacity would do little to burn more
fuel since the stock configuration is doing such a good job. Older non-computer controlled
vehicles or those
that have been modified with higher compression or boosted (nitrous, turbo, supercharged)
engines can certainly take advantage of a more powerful ignition system.With this mind, many
think the larger the gap the better. In fact, some aftermarket ignition systems boast that their
systems can tolerate gaps that are extreme. Be wary of such claims. In most cases, the largest
gap you can run may still be smaller than you think.