I have a 'Standard' 998 saloon from 1978 and there has been a few comments about the ride height...
The previous 'mature' owner was pretty good at keeping everything in order, so I can't image why he'd ever start playing with ride heights..
Anyway, with 10" wheels, (all tyres are the same profile I presume) what is the distance between the outside of the tyre and the upper most point of the arch..?
You'll probably have,to go and measure this, as it's not a std. point of measure.