Mopar Performance DIST with vac advance?

Can some one tell me how to adjust my base timing and total timing . I just got a used mopar performance electronic small block distributor. Also This distributor has an adjustable vacuum advance can. What is the best way to set the adjustable vacuum advance ? Also should the vac hose be connected to manifold vacuum/ or ported on the mopar performance distributor? This will be used on a daily driver/ cruiser 273