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Old 04-24-2012, 07:11 AM
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mreid mreid is offline
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Join Date: Jun 2008
Location: Chester Springs, PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
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I have a dual plane (performer RPM air gap) on my 427w in my Kirkham. This engine has a 5600 redline and more power than I know what to do with. I wouldn't have it any other way!

I ran a victor jr. on the 392w in my Factory Five coupe. Both engines had a 750 Holley carb and the same Ford Z heads. Hands down the dual plane wins for my uses (spirited street driving).
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Kirkham #690 289 FIA
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