Mmmmm but I'm in the middle of the cabby build although I do have a 2.1 about to go on the dyno at JMR. That would give it more of a power to weight ratio than a varioram 993.
I'd need more life insurance
When you say no regs would that include weight. My old car had the bottom 8 inches replaced with lets say thin crappy replacement panels. It made the car come in even with my 12 stone about 50lb under weight compared to the other cars. I had to put lead everywhere, my first outing out I didn't know how under weight I was going to be , so I had to scroung 3 flywheels to bolt to the car.