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sputtering power during acceleration

by Chris
(Rockwall, Tx)

Hello, I have a 1977 vette it has a newer crate engine 350cu in. 300 horse V8 (that was all done by previous owner), it seems when I idle for a while and then take off down the street the engine loses power and sputters then kicks in again, very annoying. Also if I use the A/C the power goes down and the idle drops and stalls, and if the A/c is in the on position it will not start, I have to shut it off to start the car. Looking for expert opinions as to if this is fuel/ generater/alt/ sensor related. Thanks y'all, Chris.

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Jul 27, 2021
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starstarstarstarstar 		carb? NEW
by: Anonymous

Accelerator pump on the carb
Nov 07, 2019
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starstarstarstarstar 		sputtering power during acceleration NEW
by: Van

Could be multiple issues, to me it sounds as if there could be a vacuum leak.

Start by checking all vacuum lines

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