Autolite Spark Plugs for 5.0, Forced Induction and Aftermarket Heads
1979 to 1993 Mustang
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Autolite 3923 spark plugs are the plug of choice for all 86-93 5.0 vehicles that require a colder spark plug when supercharging, turbocharging or spraying nitrous. These spark plugs fit most 5.0's with aftermarket heads (trickflow, ford racing, edelbrock afr etc). Sold each
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