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FACTORY STOCK RULES

Factory Stock Rules

100% your track rules with the mandatory requirements listed below.

MANDATORY REQUIREMENTS

Competition rules

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  1. Shop engines must run unmodified Holley 4412 Carb
  2. Crate engines may run 4-barrel carburetor, no super bowl carburetors. GAS ONLY. CRUSA engine rules apply(XP carb is allowed)
  3. GAS ONLY. Applies to all engine options. No E85
  4. Max of 1” carb spacer
  5. Only 8” wheels
  6. No spoilers
  7. No direct drive transmission
  8. No roller cam shafts
  9. Only dual plane intakes (cast or aluminum)
  10. Only stock rocker arms
  11. Only stock production heads
  12. Only stock firing order
  13. No motor set back
  14. Only OEM ignition system
  15. Shocks must be in stock location
  16. Hoosier H500 only
  17. Grooving and siping allowed
  18. Shock extensions ok.