Back in my racing years, I'd love to watch the Mini class at Lake Garnett, Lake Afton (KS), Ponca City and Warbonnett Raceway (OK). These cars have 1275 cc engines with dual SU carbs. I noticed they're street cars as they have bumpers, lights and turn signals still in them.
https://www.youtube.com/watch?v=hq743jZ6L0Y