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Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

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Old 07-15-2003, 12:17 AM   #1
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popping under load...real loud

for some odd reason this holley 750vs started popping, then stumbling under load from 1500 then smooth out and pop more at 3000rpms...what the hell?...idles a lil weird and is running rich....power valve?
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Old 07-15-2003, 12:43 AM   #2
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The popping is a backfire. Does it sound like it is coming from the engine (carburetor) or the exhaust?
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Old 07-15-2003, 02:42 AM   #3
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it sounds like the exhaust but some times it sounds like its from the engine
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Old 07-17-2003, 02:17 AM   #4
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i got it figured out...thanks for the help
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Old 07-17-2003, 05:59 AM   #5
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What was it?
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Old 07-21-2003, 05:01 PM   #6
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anyone know what he found out about his problem?
Mine is doing the same thing
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Old 07-21-2003, 06:46 PM   #7
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Mine did that and it turned out my Dad put in 87 octane. Put in 93 and it went away. Also it could be that the timing is too far advanced.
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Old 07-21-2003, 06:46 PM
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