The Group 5 regulations from 1968/69 would have allowed to add a turbo or supercharger to the mini. But I never found a document that this happened. I don't mean the VITA mini that was chopped and got another rear axle what would have transformed it into group 6. But perhaps anyone knows about a mini running in 68/69 just with a turbo or supercharger?
Nearby a Gentleman still owns the Vitamin, but seems to have no intention to sell. That means we continue to run the Arden and I have no idea how to get more power.