black ash on spark plug and valves?
black ash on spark plug and valves?
as i'm tearing my L69 apart in quest of more power, i'm finding black ash on some plugs and on my cylinder head valves so thick i scraped it off with my fingernail! are my pistons bad? what could be causing this?
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84Z28 L69 bringing back from the dead!!!
85Z28 Ram Jet 350 completely modded nose to tail.
"you need to get rid of that car, your always working on it"
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84Z28 L69 bringing back from the dead!!!
85Z28 Ram Jet 350 completely modded nose to tail.
"you need to get rid of that car, your always working on it"
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1992 Trans Am
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May 10, 2023 07:19 PM





