Re: NGK Spark Plugs..
Called NGK yesterday to find out what to run in my stock 70 LS5. He said the replacement for the R43T is a NGK 2405.
Not sure if I really got the warm and fuzzy from this guy....But that is what he told me.
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1970 Chevelle SS LS5 - 79k original miles, Tripple Black, build sheet
1969 Camaro SS/RS X22 - 548 with 5 spd, Hugger Orange, Houdstooth Interior
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