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Member
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 238
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Here is a link to the2025 Rule book.https://www.nhraracer.com/Files/Tech...20Rulebook.pdf
Current rules.080 over bore..Valve size tolerance + .005/-.015 Stroke tolerance +/- .015 / connecting rod length +/- .025 no allowances for below chamber CC minimum. Its all there!
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Brian Thompson NHRA Stock / Super Stock Class P/SA 6665 SS/MA 6665 |
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