I am running the accel U-groove plugs with a Crane fireball HI-6 ignition and I have them gapped at .060.........If I had a power adder I would gap them to .045.
The seem to work as good as any other plug I have tried and trust me I have tried them all.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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