John G and Jerry.
Thank you for the information on what level of accuracy to expect. As for the current state of parts being sold...
With new parts i go with a buyer be ware attitude.

As I was writing this I asked myself, if I expect to have issues with new parts, why my concern with old parts at a swap meet? Hmmm.

A moment of clarity.


Rock49 aka C-Rodg
work in progress
1956 Chevy 3100
261 engine