It is fuel injected. There is a fuel air mixture screw in front of the fuel distribution system. But thats it.

The plugs are a recent change.

Thanks for the reply...

I ordered a cd manual off of ebay but havent received yet.

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1976 Mercedes 450 SEL (170K Miles)
1999 Nissan Altima GXE (45,000 km)
1986 Ford Bronco II 4x4