Optimizing hot spark

[geezer101]

I don't think equal length plug leads will have any effect. It'll come down to resistance in each lead which, if they're in good shape, will be barely measurable. You can run a bigger plug gap if you are pushing higher voltage through it, but a stock ignition system will struggle to build a charge in the coil which beats the crap out of it under higher rpms. The factory gaps are a minimum recommendation for an engine in need of a good tune up under cold start conditions, so using a trial and error rechnique with plug gaps and ignition tuning until you find a near optimal tune is the way to go.

*edit - found this on ignition tuning from a guy who is a track support for MSD