Front wing is optional. Fuel is restricted to alcohol with only approved additives. All fuels are subject to testing at any time by the Tulsa Speedway staff and any deviation or violation of these specifications will result in immediate disqualification. A fuel shut-off valve shall be required within reach of the driver. NO vinyl or plastic fuel lines may be used.
Fuel cells are mandatory.
The cell shall be securely mounted. A bladder is mandatory. If clutch housing extends into the driver compartment, a stock housing may be used providing a scatter shield, blanket, or a safety ring is permanently mounted inside the bell housing constructed of a minimum of one quarter inch steel plate. On all stock bell housings, an inspection plate must be provided for easy accessibility and inspection. Starters are optional.