I received that information directly from two different ring manufacturers (Speed Pro, Childs & Alberts). Gapless are okay for n/a, but not forced induction. My machinist strongly agreed! Call Coast High/Probe, Keithcraft, Bennett Racing, ASSC, etc. and ask them what they think.
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Craig
Supercharged 93 GT
Basically stock 93 Cobra
"I drive way too fast to worry about cholesterol!"
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