repairing small block Chevys

Mailbag: Diagnosing Engine Wear and Tear

You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re diagnosing some small block symptoms. J.L. Houston, TX Q: My 1983 Chevy pickup has a stock small block topped with a 600 cfm Edelbrock Performer carburetor. When I changed the spark plugs, they had sooty deposits on the electrodes

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