Attention 600 Micro Sprint Teams
The Us6a Rev Limit rule will be enforced at the National Open. This is a change from the initial intend to run the race without it.
If you have pre registered and this changes your intent of attending the National Open you will be refunded your entry cost.
The National Open is not now, nor was it at any time this year, going to be run under an open motor rule.
The entry form will be updated on LindasSpeedway.com.