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pcwillsie · 11-05-2009, 02:10 AM

the original plugs for small block trucks of this era are r43ts. The ac delco r45ts are a little hotter and help with the fouling probs in older engines.

11-05-2009, 02:10 AM	#8
pcwillsie Registered User Join Date: Mar 2007 Location: oklahoma Posts: 118	Re: What are best plugs, stock 305 the original plugs for small block trucks of this era are r43ts. The ac delco r45ts are a little hotter and help with the fouling probs in older engines.