I went a local hot rod shop to get some plugs for an upcoming nitrous install and I told the guy that I needed non-platnium plugs that are one step colder. He sold me Accel u-grooved 574's. I wanted to look them up on the internet to verify these are the right plugs and I couldn't find any information about them. I am going to run a 100 dry shot. If anyone has any info on these plugs I would thankful.
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