Re: sparkplug gap size
that's kinda what i was experimenting with.
i know from race car experience that a smaller gap is better at higher RPM's to stop misfiring, as you want a quick spark to keep up. a larger gap takes longer for the spark, and although your car will start easier and idle better, it suffers at speed.
there's another older thread around here about gaps, and i detailed my experiment more.
basically, i startd at .030 and kept going down .005 at a time till it wouldn't start (which was .008)
then i went back to .030 and went up to .050 or something till it would barely run.
overall, it worked fine between .025 and .035, so i just split the difference and went .030