Timing confusion

[chubby53]

What is the difference between total advance and full advance?
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My build:
http://www.thesamba.com/vw/forum/viewtopic.php?t=385100

[Dismas]

semantics mostly.

Total advance is the advance range the distributor covers.

Full advance is the point at which the distributor has advanced the timing to it's max.

Usually the same number, really, tho there are some distributors that will actually retard the timing at idle, making total advance from that point a larger number than the full advance at running RPM would equal
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69/70 chop refurbed from a 70 baja

[modok]

Not sure if there is a concrete answer.

Could be discussing vacuum and centrifugal advance separately. So, you could say "the distributor reaches full(centrifugal) advance at 2900 rpms"
Or "total advance is centrifugal plus vacuum"

Maybe