The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Do you need to change plugs when converting to HEI?

brans72 · 05-01-2010, 08:49 PM

so just regap old plugs to .045?

05-01-2010, 08:49 PM	#5
brans72 Registered User Join Date: Dec 2009 Location: Durham,NC Posts: 636	Re: Do you need to change plugs when converting to HEI? so just regap old plugs to .045?