Re: NGK Spark Plugs..
I have one box of the old AC43N plugs left and will keep them for the COPO engine. I'll have to try the NGK plugs from now on in the 396. I used them years ago in my snowmobiles when the Bosch plugs just didn't work. We didn't need to carry spare plugs after that.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now. 
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