23 degree valve angle only. 360 cubic inch or smaller may run any 4-barrel carburetor. Must be mounted at front of engine. Fuel lines must be routed outside the drivers' area. Oil cooler lines must be inside steel tubing.
Fuel cells are mandatory.
Fuel cell must be securely mounted and enclosed in metal container. Tech inspector may bar the car if deemed unsafe. Balance tubes or extensions are allowed. Mufflers recommended and could become mandatory in the future. Any ignition okay.