Thread: Aftermarket/Replacement Cylinder Head Rule Change
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Old 04-05-2018, 09:03 PM   #86
Jim Hanig
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Default Re: Aftermarket/Replacement Cylinder Head Rule Change
Quote:
Originally Posted by PJ305 View Post
Has anyone contacted NHRA and have them explain how the SBC heads they approved are going to maintain the same runner volumes as the stock head they replace!
When was the last time they checked yours?
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