January 3, 201213 yr Author comment_376191 Have you read your spark plugs? That's the best way to look for differences between cylinders.ive checked them and done a compression test they all look the same, and compression was8.6-8.7 across all cylinders Link to comment https://www.classiczcars.com/forums/topic/41766-280z-fuel-consumption-problem/?&page=4#findComment-376191 Share on other sites More sharing options...
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