NASCAR Announces Busch Rule Modification

DAYTONA BEACH, Fla. - NASCAR officials notified NASCAR Busch Series teams Wednesday through a technical bulletin that their carburetor boosters must be secured by a steel wire not less than 0.025 inch in diameter.

The wire must be installed in such a manner that in the case of a carburetor booster failure, the carburetor booster would remain suspended in the carburetor without any interference to the operation of the throttle shaft and the throttle plates. The wire must loop through a hole in the booster barrel and then be tied to the respective float bowl vent tube.

This modification will go into effect beginning with this weekend's Sam's Town 250 at Memphis Motorsports Park.