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Rules - Heads Up Rules

MDSS Trucking Mean Street is a 1/8th Mile Heads Up Class, running on a .400 pro light tree. The goal of this class is to bring into heads-up racing as many as possible people who have never heads-up raced, by keeping the class "entry level", inexpensive, competitive and fun.

Rule Changes

This is a brand new class which has never ran before at Ozark Raceway Park, and since it is new you should expect some minor adjustments to the rules to keep a fair playing field for all participants. There will be a mid season review of these rules. After the 3rd race we will close any loop holes we missed. This is in an effort to keep the competition tight through as many different combinations as possible. Ozark Raceway Park reserves the right to change or modify the rules as necessary with no less than 30 days notification.

Class Record

The class record starts at 6.00. If you run .11 faster than the record, it will result in a personal jet restriction to be in effect the next race for your car.

Engine and Drivetrain

• Carb 750 cfm max subject to go/no-go gauge (no dominators).
• OEM EFI 75mm max with factory style intake only.
• Blowers & turbos prohibited.
• Nitrous - single stage with a max nitrous solenoid of .093 and single bottle.
• Carb single stage plate.
• EFI single plate or max 2 nozzles mounted before throttle body single stage.
• Purge must exhaust outside of car, away from intake.
• Big block jet restriction .082.
• Heads - conventional style valve angles only (no big chief, canted valve,ect).
• No progressive N2O controllers.
• No MSD 7531, slew or like traction control devises.
• Msd 7530 and like programmable ignition controllers are legal.
• Two steps are legal.
• Any block permitted except aftermarket ALUMINUM.
• NO trans brakes- solenoid must be removed.
• Mufflers required.
• OEM stock style non adjustable clutch permitted with OEM style trans,must be shifted like OEM.

Tires

• 26 X 8.5 Slick (clutch cars must run 26 x 8.5 slick).
• 275/50 Drag Radial - automatic only.
• 26 X 10.5 ET Street - automatic only.

Chassis and Suspension

• Front suspension: stock, no aftermarket k-members or tubular a-arms.
• Rear suspension bolt on's only.
• Ladder bars and aftermarket 4-links prohibited.
• Factory frame - frame rails must remain in factory location.
• Chassis bracing and reinforcing is permitted.
• Minor frame notching allowed.
• NO wheelie bars.
• Factory style interiors.
• Unless factory, fiberglass hood and deck lid only.
• Working head lights and tail lights.
• Must have coolant overflow tank and secured battery.
• No lexan windows due to entry level class concept with one exception, Trucks may run Lexan in rear window only for roll cage pass through.
• Stock firewall in stock location.

Pit Safety and Parking

The following applies during shootouts and other major events

• There will be a charge to park in the pits if not actually towing a race car. There is free parking on the spectator side. We are going to put the $10 into a fund to repave the pits someday. Those who do not wish to pay can park on the spectator side for free. This will also relieve some congestion.
• We will also have some spots that are designated for 70' + rigs. There will be someone at the track to help position vehicles for maximum efficiency of our limited space.
• Each Race car will be limited to one golf cart. Any golf cart not associated with a race car will be charged $10.No one under the age of 16 will be allowed to operate a golf cart or any other motorized vehicle. This does not count Jr Dragsters while competing or returning to the pits.

Please also read the ORP General Rules which apply to all races.