Originally Posted by
kalash74
I determined that the difference between right and left with respect to the seat tube is about 8mm. (I ran fishing line around the head tube, tied it off to both rear fork ends, and used a ruler to measure the difference between the seat tube and the string on both sides. The right side was +8mm more than the left. Incidentally, the rear clearance is around 118 mm--a bit wide for the standard 110 mm spacing on these old hubs. Pushing the right stay 8mm inward would both close this gap and fix the alignment issue).
Keep in mind that an 8mm measured difference using the "string method" actually means your stays are only 4mm out of alignment, so don't get too carried away when you cold-set it.