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Re: Spark Plug Question(s)
R45TS for me, I was running too lean and I changed my 600 Holley jets from a factory #66 to #69 and might could go a #70 but it runs pretty darn good where it's at...Ed
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1970 C/10 350/T5 SWB stepper...
1979 Corvette 350/Auto T-top...
2010 Acura RL...
2015 2500HD Z-71 Silverado...
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