Rotor and Cap Continuity?

Gap is not the "full story." In the 70's GM was screwing around with longer and shorter gaps in their V8 setups. Meanwhile Champion had come out with their "booster gap" spark plugs which actually had a gap in the ceramic insulator, and the GM shorter rotor nullified the Champion "booster gap."

This gets complicated, and is related to the load impedance the coil sees. This is not at all like your house power or a battery connection, which is a simpler amps/ vs volts/ vs circuit resistance deal