Weight question?

[Rat Raceway]

If a car moves up a class to a lighter class, is there a max weight it must meet?

Random example.

The 1969 Nova. 3337 shipping weight with Manual Trans and iron heads is 385hp. Weight Break 8.66 B/S.

Is there a minimum weight it would have to meet to run A/S 8.00? Or can it weigh whatever and jump up to that class?

Going down a class I understand adding to meet the minimum of that weight break.Does it go both ways?


Thanks!!!