AFAIK, the Philly chapter of CSBA meets are on the first Saturday of each month.
Ephrata Meets are on the 1st Sunday of each month between MAR and NOV.
I plot out a nice route from Pottstown to Ephrata through French Creek & Maple Grove Drag Strip, 45+ mi., mostly single lane, handful of traffic lights, lots of turns and elevation changes, rarely seen LEO along the way.. very entertaining for all level of riders: