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Eight Autolite 313, older number AT2, spark plugs. These are 1970s vintage NORS, American made. Heat range is about equal to a 42 in the AC brand.
$10.00 plus shipping from 31548. These fit Olds iron heads and work well on motors of about 12:1 static C/R. SOLD
Last edited by 67OAI; May 16, 2023 at 10:50 AM.
Reason: add info
