Frakenduster,

Where was it that you tried to register?

This is the webpage for the event. Note the registrations instructions at the bottom of the page.
[url=http://alltimeracing.com/spring-fling-speed-festival-x-april-21st-thursday-2016/][/url] http://alltimeracing.com/spring-fling-speed-festival-x-april-21st-thursday-2016/

Thanks,

Alltime