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Discussion Starter · #1 ·
Maybe a dumb question, but why?
 

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Because it has 8 spark plugs ;)

It was designed to get a more complete burn so it would throw out less emissions. It's not for more power or anything like that.
 

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Whenever you see additional parts in an application where previously everything worked just fine without it, you can be sure the government got involved.
 

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No, they spark all the time.
 

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Discussion Starter · #6 ·
When did ford start using 8 spark plugs? I had an '85 4 banger 8 years ago or so and I think it only had 4 plug wires.

Was this an EFI only thing?
 

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