I've had bad luck with Bosch and Delphi coils, appears to be alot of fakes out there. There are some threads about fake Delphi coils inducing noise and causing issues. I recommend going with Eldor coils, they are more expensive and worth every penny. As for plugs, go with the NGKs laser iridiums. They are a step or two colder (depending on which one you get) and are awesome. Very expensive on Amazon about 22 each! But you can find them on eBay much cheaper. I myself am running NGK 97506, as I am getting ready to install my jb4 and see how hard you can push a 143 thousand miles n63 with just octane booster...if you see a small thermonuclear cloud in the southwest region of the US, do not be alarmed...it's just me...😄
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