I have a set of vortec heads on my 77 Camaro with r42lts plugs that will not clean up until I put it on the highway, is there a way to read the plug and get a hotter set?
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I have a set of vortec heads on my 77 Camaro with r42lts plugs that will not clean up until I put it on the highway, is there a way to read the plug and get a hotter set?