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toolboxchev · 02-01-2016, 10:30 PM

I believe most of the opinion I have heard on these is that they would actually do some good in an aluminum headed motor.

Others will ring in on this.

02-01-2016, 10:30 PM	#4
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: Yet Another Spark Plug Question I believe most of the opinion I have heard on these is that they would actually do some good in an aluminum headed motor. Others will ring in on this.