I just noticed that my 912 -65 have ventilated brakedisks in the rear, does that mean that they are upgraded ?
I suspect someone could have done a upgrade at the same time it was converted to a chevy 350 V8 engine, I have read that its recommended when putting in V8:s.
In front there are solid disks, original ?
How can I see if the frontbreakes are original, are there different sizes of disks or brakepads ?