No, too small a gap won't cause a misfire I think. My gap at .30 was misfiring because it was still too wide and the cylinder pressure and fuel mix was still blowing out the spark at a few spots in the rev band. I was running a fuel mix of high 10s. I heard of one Focus needing a gap 0f .025 at around 200whp cause it's coil was weak. I don't know about that smaller equals colder.
2000 Rio Red I4 Cougar
200whp & 210wtq at 9psi
254whp & 276wtq with NX 35shot
WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip
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