Just a note here from a 24-year Bonneville veteran, (and that makes me a rookie on the salt):

DO NOT PLAN TO COMPETE AT SPEEDWEEK IN THE 130 MPH CLASS OR 150 MPH CLASS.

These categories are available only at the United Salt Flats Racers Association (USFRA) event, a much smaller program than the SCTA/BNI Speedweek event.

They are two completely different entities.