Klaus - As you can see, I was very skeptical about loss of ignition under boost, Perhaps blow out is not a good term, but two supercharger sites and two Mustang sites told very similar stories about spark problems under boost. Usually starting at 10 puonds of boost and 3000 RPM.
Using colder plugs and smaller gaps were mentioned many times.
Actually, I remember reading about the phenomenon in the 60s, but I don't remember which magazine(s) it was in - as a teen I did read Road & Track, Sports Car Graphic, Hot Rod, and Mechanics Illustrated off and on.
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'96 855R,'64 PV544 driver, '67 P1800 basket case, '12 XC70, the first three are mine, heh, heh, 525,000 miles put on 10 bricks
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