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first who rebuilt your carb? there is not many people that know how to rebuild an q-jet ( assuming you have the original carb) second you might have a vacum leak. with it running spray some carb cleaner around the base and around the hoses that connect to the carb ( make sure you have the shaker hood asembly attachted while doing this so no spray goes in through the top of the carb) what you looking for is a change in idle if the idel changes you have a vacum leak. alot of times people reuse the carb base gasket simply by turning it over and reuseing it. ( do it right the first time ). now if the carb's needles where not let alone to set and dry for at least 24hrs so that epoxy or JB Weld had time to actually fully cure then they could have collapsed or something. well a few things to look for. also does the carb whistle you could have cracked or broken fuel bowls... lot spossibities.. well good luck

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Q: You have 1979 trans am 403 olds car idles perfect great throttle response at idle put it drive no power spits and sputters what is the problem carburetor has been rebuilt?
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