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The book says to use champion rn12yc spark plugs so I did, a month later my 87 wouldn't start and I didn't think it could be the plugs, it was I put Bosh spark plugs in and it started but was misfiring so I put Bosh spark plug wires ( 32.99 at autozone) and haven't had a problem since.

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13y ago

What else can I help you with?