WHAT: 4th Annual MUSCO Lighting Great American Stock Car Challenge presented by Mike’s Tire & Alignment and PBM Performance Products.

WHEN: Wednesday-Thursday June 13-14, 2007.

WHERE: Southern Iowa Speedway, Oskaloosa, Iowa.

Entry form available at: http://www.rlpromotions.com/oskaloosa/media/MuscoStockCar_Osky.doc

Stock Cars: $3,000 to win ($20 pre-entry).
B-Mods: $500 to win ($10 pre-entry).
Hobby Stocks: $700 to win ($10 pre-entry).

Qualifying Procedure: On Wednesday night, all drivers will draw for heat races. The top 8 cars from the Wednesday night A-Main will comprise the first four rows of Thursday's Championship Race. On Thursday, all drivers will redraw for heat races. A total of 24 cars will start the Thursday night Championship Races.

No USRA license required unless driver is competing for points, points funds and/or USRA contingency awards. USRA Casey's General Stores Weekly Racing Series national points will be awarded both nights.

Stock Car Rules: Roller rockers allowed. No roller cams. Two-barrel carburetor - Rochester, Motorcraft or untouched Holley 4412. Grooving and/or siping tires is allowed. American Racers KK704/G60 stamped or non-stamped tires recommended. Hoosier G60 tires will be allowed, but driver will not earn USRA points.

Hobby Stocks Rules: 9:1 360 limit. No weight rule.

B-Mod Rules: USRA or Sportsmod rules. Must have 20 cars entered to award announced purse.

For complete rules go to www.rlpromotions.com/oskaloosa click on Info link.

Entry fee if post-marked by June 1: Stock Cars $20, Hobby Stocks and B-Mods $10.
Entry fee at the track: Stock Cars $75, Hobby Stocks $50 and B-Mods $30.

CHAMPIONSHIP RACE PAYOFFS:

Stock Cars:
1. $3,000.00
2. $2,000.00
3. $1,000.00
4. $800.00
5. $600.00
6. $500.00
7. $400.00
8. $350.00
9. $300.00
10 . $290.00
11. $280.00
12. $270.00
13. $260.00
14. $250.00
15. $240.00
16. $235.00
17. $230.00
18. $225.00
19. $220.00
20. $215.00
21. $210.00
22. $205.00
23-24. $200.00
Tow $75.00

Hobby Stocks:
1. $700.00
2. $500.00
3. $400.00
4. $300.00
5. $200.00
6. $175.00
7. $150.00
8. $130.00
9. $120.00
10. $110.00
11. $100.00
12. $90.00
13. $85.00
14. $80.00
15-24. $75.00
Tow $50.00

B-Mods:
1. $500.00
2. $400.00
3. $300.00
4. $200.00
5. $175.00
6. $150.00
7. $125.00
8. $100.00
9. $90.00
10. $80.00
11. $75.00
12. $75.00
13. $70.00
14. $70.00
15-24. $65.00
Tow $50.00

Tow money will be paid to all drivers racing both days, but failing to qualify.

There will be a $100 award for the longest tow (regardless of class).

For more information, call (515) 832-6000 or visit www.rlpromotions.com/oskaloosa online. For USRA rules, visit www.usraracing.com online.