I live 5 miles as the crow flies from an 1/8 mile "outlaw" drag strip... it's strictly "run what ya brung and hope ya brung enough"
The quality of cars that show up is astounding. Guys are running in the 4's in the upper classes....
When I was younger I used to bracket race a Camaro, came home many early mornings with my clothes reeking of burnt rubber, and my eardrums vibrating from the combination of a rev limiter, (stutter box) and open headers.