It's a 305 V8 with 202,000 Miles.
Current plugs are ACDelco 1. Auto parts house sold me CR43TS. ACDelco site shows both are acceptable, but 1 is rapidfire. Both are supposed to be interchangeable.
Do I stay with the 1's, not worry & use the CR43TS, or use something else altogether? I know the gap settings for both plugs, but how much do I torque them?