blk00rt did your magnum motor have hyperutectic pistons when you were spraying N.O.S. on it.If it did,were the rings gapped bigger for it.I have a 360/380hp crate motor and I was wanting to try spraying it without regapping the rings.Maybe 100 or 125.I only run 1/8 mile.

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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 ...