Spark Plugs And Cats.
What is the best spark plug for '89 5.8l? and What is the best cats for the 5.8l for true duals? straight pipe after cats.
Cant go wrong with Auto-lite plugs. and any cat will do. walker usually has good prices on universal cats.
Would go with either Motorcraft plugs or E3 iridium plugs expensive as hell but a great burn.
ngk plugs will be just fine. they are a quality spark plug and they dont break the bank
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