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Old 04-08-2010, 08:44 AM   #1
red69ss
Burnouts are therapeutic
 
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Join Date: Jun 2007
Location: lancaster, south carolina
Posts: 852
Hotter plugs or colder plugs for spark knocking?

trying to resolve some spark knocking issues ,tried 93 octane and adjusting the timing . I'm thinking I might have to change springs in distributor? thouight I would try changing plugs first so hotter or colder? also I read somewhere that if the engines running lean this can cause spark knocking anyone experienced this?
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1972 C10 ALMOST DAILY DRIVER
1968 C10 RUSTBUCKET (MISSION IMPOSSIBLE)
1972 PONTIAC LEMANS CONVERTIBLE (WIFE'S CAR)

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