Originally Posted By MR_P_BODY
I'm using the 3924 in my 416 injected engine
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I have been running a AR3933 plug and was thinking about running one a step hotter. Which one would that be a AR3932 or AR3934.

1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...