this one i KNOW i tightened bc after running it around the block after changing the trans fluid i noticed the wire was moving while the engine idled bc the plug had gotten loose...so i tightened it down again...im hoping the threads arent fucked....i do have another set of heads that i wanted to get ported before i threw them on....maybe i should let it run and get warm then retighten..i guess stuff expands and all
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