Quote:
Originally Posted by 96greengt
Mine with my mods and compression are at .38 as of now, when I port the upper and lower intakes, I will switch to a colder plug and gap to .35 and then re-dyno.
I use copper plugs, I have the NGK TR-5 now, switching to the TR-6 soon.
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iv wondered this for a while aswell. What are colder plugs. does it litteraly mean the spark is not as hot(temp wise)?
and why would u need to have a colder spark if this was the case? i know ppl with juice switch to colder plugs sometimes.