Havasu 95 Speedway and the Lucas Oil Modified Series reserve the right to alter or amend the rules and regulations in the interest of safety, cost control, and/ or fair competition. ADDING WEIGHT, REQUIRING THE LOSS OF LEFT SIDE PERCENTAGE, OR REQUIRING A CARBURETOR RESTRICTION PLATE ON A VEHICLE WILL BE TOOLS USED BY RACEWAY OFFICIALS TO MAINTAIN FAIR COMPETITION. It is the responsibility of each competitor to read and understand the contents of these rules. If there is a disagreement or dispute regarding the meaning or application of these rules, the decision of the Race Director shall prevail.