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Old 06-21-2005, 09:52 PM
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2KWIK4U 2KWIK4U is offline
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Join Date: Jan 2004
Location: McAlester, Ok
Cobra Make, Engine: Lonestar LS427, Keith Craft 496 Genesis, 649 hp, 668 ft-lb, TKO-600, Dynatek Stack EFI
Posts: 204
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Buzz
I have/had the same problem, I think, as you are having. I think we have to bear in mind that we're talking about 650+ HP in a 2300# car and they aren't going to run real smooth at low RPM or no load. I have a problem at constant throttle between 1500 and 2250 RPM, like when I'm trying to get out of the neigberhood without breaking any windows. It's almost like I'm running on 4 cylinders. Anything above that, no problem. From idle to WOT no problem. Just low RPM under no load. To start with, Keith had my timing @ 38 all in by 2800. I changed the springs and changed it to all in by 2300 and it really helped, but not completley. I thought it may be vacuum leak, but can't find it if there is. Maybe power valves, don't know what the 950 Divincia has in it of the shelf. Just kind of learned to live with it so far. Let me know if you figure it out.

Brad W..
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