Re: ZL1 SPARK PLUGS
I use AC R43XLS. Extended tip is the difference. The ZL-1 cam eats plugs, so I change them offen.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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