RE: Increasing turbo boost/performance on '88 5kcstq

["G. Benedikt Rochow" <rochow@segosf.hlo.dec.com>]

>Having discovered what stock performance should be like, they find it's
>enough.
>
>In my experience, this especially applies to WoT switches and vacuum
>advance actuators.

Yes, the former did help rather a bit, thank you for that tip.
What about the latter? What *is* vacuum advance?
(This is a 5kS non-t non-q, but I'd guess the concept is
similar?)

thanks,
-Benedikt Rochow