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john910 08-15-2011 10:06 AM

what spark plug to use
i have a sbc with vortec heads what is a good plug to start with and what # plug . thanks for your help.

482 08-15-2011 05:04 PM

I like the NGK plugs! JMO
I think NGK TR5 is stock replacement for gas. I think they have TR55 and TR6 for different heat ranges. May give you something to start with.
Some of the other fellows could help better on the small block stuff, I run 8's in a gas BBC

lanham 08-28-2011 10:17 AM

I use NGK plugs too.

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