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best plugs to run in 67 300


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I have a 300-2 in my Skylark and I was wondering what the best plug to run in it is. I have and HEI distributor in it and am planning on putting anm accel super coil and ignition module in it. I was wondering what was the best plug (brand and number) that anyone has tried in their 300's. I have luck with the Autolite 85 which are what the book calls for but wondered if a higher heat range would help me or hurt me. Thanks for your time.

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