No! That would just give you a snapshot of the Vcan's maximum capability at it's current adjustment, in conjunction with the centrifugal advance. This snapshot could endure for a limited rpm span, right around a cruising speed of *** which varies with the gear that you are in, cuz the signal at the sparkport also varies with the load. This advance can vary according to the can's design, and to the amount of signal, and to it's adjustment. One could call it a very sophisticated device. At any given moment, it could be contributing from no advance to whatever it's rated maximum is. They are available with various specs and I have seen from a minimum of 9 degrees to a maximum of 22 degrees. So if you are cruising at 2200 and your vacuum is sufficient to pull the can to it's maximum, then you could be cruising with as little total all-source advance of say 14* on a seized system(idle timing), to 55* on a well executed system. And the engine will love somewhere between 45 and that 55, depending on its design and chamber efficiency, and the environment in which it is operating.
