David,
With my SVT having 85K on the odometer, I looked this one up this weekend. My take on this is that you are still eligible for Street Mod (SM). Some of the cars prepped for this class are tough. Up to 6L N/A or 4L forced induction. I will look up more of the specifics, but I am pretty sure that most anything goes in this class. Street tires, though...No race rubber.
Regards,
TheMark
