shorty spark plugs...options?
I am running NGK shorty spark plugs, and im having a hard time finding other shorty plugs that are colder for my supercharged engine.
Are there iridium shorty plugs?
Any other suggestions?
1969 SS camaro,emerald green with white hockey stripe.383 stroker with weiand supercharger.12 bolt 373 gears. 4 speed.
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