I've done the search , no joy on the vacuum in inches for the start and end for the vacuum advance pot on the distributor. What I'm looking for is the start amount plus the degrees of advance and the end amount plus the degrees of advance. Also a ball park idea of how much vacuum a 1.7 with dual 40 IDFs might generate. Also what are the RPMs that the mechanical advance makes through the range of RPMs , I know to time @3500 RPM for a total of 28* +/- .Basically information that would be used to map a distributor. ANY help would be appreciated.

Jack