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Sportsman
| Weight: |
3100 post-race. Add 100 lbs. for 3 link, add 50 lbs for engines over 360 cubic inch.
Add 100 lbs. for 4 Barrel.
55% LS 50% Rear
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Tires/Wheels: |
Hoosier 970 or 880. Max 8" wheel. |
| Spoiler: |
6" max. height. |
| Frame: |
Perimeter frame, may be tubular from center of differential back.
1981 and earlier Camaro and Firebird ok. |
| Ride Height: |
4" minimum |
| Engine: |
Standard cast 23 degree - 4 barrel ok (add 100 lbs.) |
| Safety: |
All standard safety rules apply. |
Pure Stock
| Weight: |
3400 post-race. Add 100 lbs. for engines larger than 360 cubic inch if 2" O.D. exhaust
restriction is not present behind muffler.
Deduct 300 lbs. for 318 cubic inch and under.
52% LS 45% Rear
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| Engine: |
Must meet max .410 cam lift. Stock rockers.
2 1/2" O.D. max, single exhaust, mufflers required.
Stock carbs, stock intake, Aluminum stock replacement intake ok, no spacers.
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Differential: |
Welded ok. |
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Tires/Wheels: |
DOT street radials, max 235/60x15. Max 8" rims.
No made for racing tires.
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| Safety: |
All standard safety rules apply. |
4-Cylinder Division
| Follow Spartan Pony Stock Rules |
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