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    • Home
    • Club members
    • Rule Book
      • List of Classes
      • Operation of contest
      • Yearly Fees
      • points system
      • General Track Rules
      • flag person
      • General Tractor rules
      • Reason 4 Disqualification
      • teardown
      • stock class
      • stock 25 hp twin
      • mod stock/stock altered
      • pro stock
      • flat head Classic s.s.
      • open super stock
      • p.s.t.
      • limited outlaw
      • unlimited outlaw
      • unlimited outlaw
      • sleds
      • board of directors
      • tech people
      • Class representatives
    • Schedule
      • Calendar
      • Schedule
    • POINTS
      • 2021 Points
      • 2022 points
      • 2023 points
      • 2024 Points
    • Printable Rule Book
American Mini Pullers INC
  • Home
  • Club members
  • Rule Book
    • List of Classes
    • Operation of contest
    • Yearly Fees
    • points system
    • General Track Rules
    • flag person
    • General Tractor rules
    • Reason 4 Disqualification
    • teardown
    • stock class
    • stock 25 hp twin
    • mod stock/stock altered
    • pro stock
    • flat head Classic s.s.
    • open super stock
    • p.s.t.
    • limited outlaw
    • unlimited outlaw
    • unlimited outlaw
    • sleds
    • board of directors
    • tech people
    • Class representatives
  • Schedule
    • Calendar
    • Schedule
  • POINTS
    • 2021 Points
    • 2022 points
    • 2023 points
    • 2024 Points
  • Printable Rule Book

Stock Class:

1. All general rules apply. 


2. All stock tractors will use a commercially built single cylinder flat head garden tractor type engine. 


3. Stock appearing carburetor (1.200 maximum) 


4. Stock Cam (.324 Lift 223 Duration) 


5. Stock head, factory valve location. 


6. Maximum tire size 26x12x12 except from factory, professional pulling tires allowed.


 7. RPM will be checked with an electronic timing light and by a club technician. 


8. Must run on gas. 


9. Must have factory shielding or equivalent. 


10. Engines may be bored .030 overstock. 


11. No other internal modifications. 


12. All engines run 3800 RPM, one exception to this rule is for the 14 hp and 16 hp motors. They are allowed to run in the 12 hp class but must run at 3200 RPM. 


13. Will NOT remove oil pan.

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