Motorhead: I didn't mean to Hijack your thread. I should have opened this in the Small Block forum, sorry. The Moderators may move it if they wish.
Rick L: I don't have an SCCA rule book to refer to but I'm certain they all run Race Gas of varying types and they all have 12.5:1 compression (or more) what race engine doesn't. It's not the displacement that's allowing these engines to RPM & sound as they do..compare videos (will attach some in a hour) of a Full on 289 CObra and a full on GT 350. I'm beginnning to think it has to do with the (limitations of the cam timing) imposed by the Webers typically used on all the Cobras in Vintage car racing be it in the US or UK. It's not the increased displacement that is allowing this to happen. Maybe the Cobra guys just aren't preparing their engines or driving the cars (with rare exception) as aggresively as the GT350 drivers. I always come away feeling like this is the case after attending Historics with the FIA Cobras and GT350's especially if they are in the same race. Anyone else care to comment????
http://www.youtube.com/watch?v=tQraQ...eature=related
http://www.youtube.com/watch?v=tQraQ...eature=related
http://www.youtube.com/watch?v=btqQr...feature=fvwrel