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Old 09-01-2021, 01:41 PM   #20
MoJo Risen
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Join Date: Sep 2012
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Default Re: Spark Plug Heat ranges, what gains have you made?

Quote:
Originally Posted by Ralph A Powell View Post
I now for a fact on the Boss 302 it was worth 10 hp as I was at Dyno the night we run it.
Thats approximately 2.5% gain?

There is more potential HP in a corrected Piston pin offset.

I'm glad we all know now that NHRA DOES NOT TECH THIS FEATURE.
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