The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 230-250 I6 hei

tincan1966 · 08-01-2013, 06:53 PM

I use nothing but NGK V-power racing plugs. You can go to their website and cross reference your plugs.
They are usually only about $2 a plug. had real good luck using the .045-.048 gap. When using the MSD 6AL digital seemed to like about .055" gap better.

I figure if they will last in the Fuel Altered on 25% nitro-methane they ought to last on pump gas.

08-01-2013, 06:53 PM	#5
tincan1966 Registered User Join Date: Oct 2010 Location: Independence,KS Posts: 1,477	Re: 230-250 I6 hei I use nothing but NGK V-power racing plugs. You can go to their website and cross reference your plugs. They are usually only about $2 a plug. had real good luck using the .045-.048 gap. When using the MSD 6AL digital seemed to like about .055" gap better. I figure if they will last in the Fuel Altered on 25% nitro-methane they ought to last on pump gas.