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Old 07-23-2009, 09:53 AM
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Xavier Xavier is offline
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Join Date: Nov 2006
Location: Fontana, CA
Cobra Make, Engine: Lonestar LS427, 408w, 48IDA Webers, TKO 600, 9" Currie 4-link 4.11 rear
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With your engine running, your hand wrapped wround the carb to gun the engine while you are watching the fuel sites on the passenger side, seee what happens when you gun it. Does the fuel site come back to the same level each time? Thats a good thing. Now make certain that the fuel level is sitting a little over half, again about 60% from the bottom.

Thats what did it for me, in addition to what CDnus said - with the exception about it being level. All of the tuners I cam across who did carb tune up professionally said 60%, and that fixed the issue. Found it in my manual as well after I did it...
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