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new plugs tomorrow...

416 Views 13 Replies 4 Participants Last post by  workinprogress
ok i know that this has been asked like 4.3 million times but not including NGK...and i am not concerned with plug life...they are cheap to replace and i do it when im bored lol, anyway what is the best plug from say autolite, to run with a 93 tune?
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a 103 is a step cooler of a heat range. Mainly a nitrous/ supercharger plug

a 764 is a copper core, and is a great plug...
Isn't it 103 colder...104 stock? Or is it 102 colder 103 stock? Whatever it is, i ran the colder of the two when i was FI, now that im back to basically stock i run the hotter of the two.
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