Slant six racing

Nitro is banned?
What would a /6 sound like with 6 zoomie pipes on nitro?

I used to go to the U.S. Nationals every year in the early 70's.
We used to cruise the local motels in the evenings after the track closed down at 6:00 and check out what was happening. One motel in particular had pit mini bike races in the parking lot every year and eventually had a Christmas tree. Some of the fuel guys ran nitro in their Briggs and Strattons.
Ahh....the good old days of racing before it became an industry.