If any track/location is trying to build a USVTA class and the majority of the racers want to run faster motors, adjustable speed controls, bigger batteries then I suggest building a USGT class instead. USGT rules (also found on the USVTA website) are much more open, which may be better for individual tracks/groups of racers.
ROAR rules for VTA can also be a good place to start, but you need to tech the cars to make sure everyone is running in blinky.