1997 ck1500 5.7 vortec stock motor. Plugs,wires,distributor cap and rotor. 200k miles. Ive read the Delco plugs are made by Ngk. which type Ngk are recommeded/irridium,platinum??; Plug wires,,I have never cut wires;cap and rotors,brass vs aluminum.
Also Ive been told the OEM distributor has...