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**'68OrangeSunshine** · 06-05-2022, 09:40 PM

AC Delco's quality dropped once they went to Mexico. I now use Denso plugs. No problems with them.

06-05-2022, 09:40 PM	#2
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,130	Re: Spark plug suggestions anyone? AC Delco's quality dropped once they went to Mexico. I now use Denso plugs. No problems with them. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.