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Old 06-19-2008, 10:03 AM
olddog olddog is offline
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Join Date: May 2006
Location: St. Louisville, Oh
Cobra Make, Engine: A&C 67 427 cobra SB
Posts: 2,445
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My advise is find some people with engines similar to yours (who have their cam card). Listen to the engine and see how it behaves on the street.

My 347 stroker has 236/242 duration @ 0.050" lift and .550/.575" lift intake/exhaust. It has a Mass Flow fuel injection using a Edel Victor Jr single plane intake. The previous owner told me he had a carb on it and the EFI calmed the idle down a bunch. The idle has a killer sound - I love it. When cold, it will buck, if you try to run bellow 1600 rpm. Warmed up your can get away with 1400 rpm. It doesn't smooth out until 1800 rpm. If you run bellow 2000 rpm the fuel milage goes into the toilet. Torque comes on strong by about 3000 rpm (by the feel of my pants). I cannot tell if the torque drops off at the top end. I try to shift by 6000 and have let it get to 6500 by accident a couple times. The rpm come up so fast I cannot feel any loss of torque.

Hope that helps some.
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