bbc 598
04-12-2009, 09:52 PM
#2
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Join Date: Jul 2008
Location: Little River SC
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How about the type heads you have and comp.ratio probably alum. with a crush washer type plug and a flat top piston or inverted dome you can start with a R5673A-8 this is an NGK I use this plug on all my SC and natural engines and is safe to start with as long as you are not trying to cover up a problem with A/F ratio or idle problems. 92 octane and timing about 35 degrees btdc.
