Here's the skinny on Vegas 2004. I haven't seen anything firm from the organizers but according to Steve Hurst on the Turbo BB: West Coast Nationals Dates for 2004 The new dates are Oct. 8, 2004 Friday 4 Pm to 10 PM Oct. 9, 2004 Saturday 7 AM to Late PM
From the LVMS schedule: 10/08/2004 06:00pm Super Car Test and Tune 10/09/2004 09:00am Super Car Spectacular (Buick GN/F-Body/Mustangs/Corvettes)